145262499690 has 256 divisors, whose sum is σ = 445824000000. Its totient is φ = 30028078080.

The previous prime is 145262499673. The next prime is 145262499709. The reversal of 145262499690 is 96994262541.

145262499690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145262499690² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145262499690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 22521586 + ... + 22528034.

It is an arithmetic number, because the mean of its divisors is an integer number (1741500000).

Almost surely, 2^145262499690 is an apocalyptic number.

145262499690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145262499690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222912000000).

145262499690 is an abundant number, since it is smaller than the sum of its proper divisors (300561500310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145262499690 is a wasteful number, since it uses less digits than its factorization.

145262499690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6690 (or 6676 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 145262499690 in words is "one hundred forty-five billion, two hundred sixty-two million, four hundred ninety-nine thousand, six hundred ninety".