145545427692 has 240 divisors, whose sum is σ = 460307232000. Its totient is φ = 39173590656.

The previous prime is 145545427667. The next prime is 145545427777. The reversal of 145545427692 is 296724545541.

145545427692 is a `hidden beast` number, since 1 + 4 + 5 + 5 + 4 + 542 + 7 + 6 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7704034 + ... + 7722902.

It is an arithmetic number, because the mean of its divisors is an integer number (1917946800).

Almost surely, 2^145545427692 is an apocalyptic number.

145545427692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145545427692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230153616000).

145545427692 is an abundant number, since it is smaller than the sum of its proper divisors (314761804308).

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

145545427692 is a wasteful number, since it uses less digits than its factorization.

145545427692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19090 (or 19079 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 54.

The spelling of 145545427692 in words is "one hundred forty-five billion, five hundred forty-five million, four hundred twenty-seven thousand, six hundred ninety-two".