72545136027736 has 32 divisors (see below), whose sum is σ = 150285320166240. Its totient is φ = 32654588082688.

The previous prime is 72545136027733. The next prime is 72545136027803. The reversal of 72545136027736 is 63772063154527.

It is a super-2 number, since 2×72545136027736² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72545136027733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11596086391 + ... + 11596092646.

It is an arithmetic number, because the mean of its divisors is an integer number (4696416255195).

Almost surely, 2^{72545136027736} is an apocalyptic number.

It is an amenable number.

72545136027736 is an abundant number, since it is smaller than the sum of its proper divisors (77740184138504).

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

72545136027736 is a wasteful number, since it uses less digits than its factorization.

72545136027736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23192179083 (or 23192179079 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 58.

The spelling of 72545136027736 in words is "seventy-two trillion, five hundred forty-five billion, one hundred thirty-six million, twenty-seven thousand, seven hundred thirty-six".