72858641948 has 24 divisors (see below), whose sum is σ = 127781389344. Its totient is φ = 36349747200.

The previous prime is 72858641941. The next prime is 72858641957. The reversal of 72858641948 is 84914685827.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72858641941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4548233 + ... + 4564223.

It is an arithmetic number, because the mean of its divisors is an integer number (5324224556).

Almost surely, 2^72858641948 is an apocalyptic number.

It is an amenable number.

72858641948 is a deficient number, since it is larger than the sum of its proper divisors (54922747396).

72858641948 is a wasteful number, since it uses less digits than its factorization.

72858641948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18413 (or 18411 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 62.

The spelling of 72858641948 in words is "seventy-two billion, eight hundred fifty-eight million, six hundred forty-one thousand, nine hundred forty-eight".