72645074307476 has 48 divisors (see below), whose sum is σ = 143855298742848. Its totient is φ = 31810753900800.

The previous prime is 72645074307437. The next prime is 72645074307527. The reversal of 72645074307476 is 67470347054627.

It is a super-2 number, since 2×72645074307476² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262847615 + ... + 263123846.

It is an arithmetic number, because the mean of its divisors is an integer number (2996985390476).

Almost surely, 2^{72645074307476} is an apocalyptic number.

It is an amenable number.

72645074307476 is a deficient number, since it is larger than the sum of its proper divisors (71210224435372).

72645074307476 is a wasteful number, since it uses less digits than its factorization.

72645074307476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525971592 (or 525971590 counting only the distinct ones).

The product of its (nonzero) digits is 165957120, while the sum is 62.

The spelling of 72645074307476 in words is "seventy-two trillion, six hundred forty-five billion, seventy-four million, three hundred seven thousand, four hundred seventy-six".