42075491637465 has 96 divisors (see below), whose sum is σ = 86154379234560. Its totient is φ = 18726950131200.

The previous prime is 42075491637427. The next prime is 42075491637469. The reversal of 42075491637465 is 56473619457024.

42075491637465 is a `hidden beast` number, since 4 + 2 + 0 + 7 + 5 + 4 + 9 + 163 + 7 + 465 = 666.

It is not a de Polignac number, because 42075491637465 - 2⁶ = 42075491637401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42075491637469) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16897525 + ... + 19226994.

It is an arithmetic number, because the mean of its divisors is an integer number (897441450360).

Almost surely, 2^{42075491637465} is an apocalyptic number.

42075491637465 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42075491637465 is an abundant number, since it is smaller than the sum of its proper divisors (44078887597095).

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

42075491637465 is a wasteful number, since it uses less digits than its factorization.

42075491637465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36124735 (or 36124732 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 63.

The spelling of 42075491637465 in words is "forty-two trillion, seventy-five billion, four hundred ninety-one million, six hundred thirty-seven thousand, four hundred sixty-five".