72694865748 has 48 divisors (see below), whose sum is σ = 173184411456. Its totient is φ = 23727782400.

The previous prime is 72694865743. The next prime is 72694865753. The reversal of 72694865748 is 84756849627.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72694865743) and next prime (72694865753).

It is a super-2 number, since 2×72694865748² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72694865743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210403 + ... + 435498.

It is an arithmetic number, because the mean of its divisors is an integer number (3608008572).

Almost surely, 2^72694865748 is an apocalyptic number.

It is an amenable number.

72694865748 is an abundant number, since it is smaller than the sum of its proper divisors (100489545708).

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

72694865748 is a wasteful number, since it uses less digits than its factorization.

72694865748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646104 (or 646102 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 66.

The spelling of 72694865748 in words is "seventy-two billion, six hundred ninety-four million, eight hundred sixty-five thousand, seven hundred forty-eight".