145191981769350 has 48 divisors (see below), whose sum is σ = 360677243750400. Its totient is φ = 38653224282400.

The previous prime is 145191981769327. The next prime is 145191981769363. The reversal of 145191981769350 is 53967189191541.

It is a super-2 number, since 2×145191981769350² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 807878886 + ... + 808058585.

It is an arithmetic number, because the mean of its divisors is an integer number (7514109244800).

Almost surely, 2^{145191981769350} is an apocalyptic number.

145191981769350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145191981769350 is an abundant number, since it is smaller than the sum of its proper divisors (215485261981050).

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

145191981769350 is a wasteful number, since it uses less digits than its factorization.

145191981769350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615938085 (or 1615938080 counting only the distinct ones).

The product of its (nonzero) digits is 73483200, while the sum is 69.

The spelling of 145191981769350 in words is "one hundred forty-five trillion, one hundred ninety-one billion, nine hundred eighty-one million, seven hundred sixty-nine thousand, three hundred fifty".