72139353414648 has 64 divisors (see below), whose sum is σ = 198738111411840. Its totient is φ = 21680521236864.

The previous prime is 72139353414641. The next prime is 72139353414649. The reversal of 72139353414648 is 84641435393127.

It is a super-2 number, since 2×72139353414648² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72139353414591 and 72139353414600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72139353414641) 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, 2688543286 + ... + 2688570117.

It is an arithmetic number, because the mean of its divisors is an integer number (3105282990810).

Almost surely, 2^{72139353414648} is an apocalyptic number.

72139353414648 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

72139353414648 is an abundant number, since it is smaller than the sum of its proper divisors (126598757997192).

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

72139353414648 is a wasteful number, since it uses less digits than its factorization.

72139353414648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377113468 (or 5377113464 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 60.

The spelling of 72139353414648 in words is "seventy-two trillion, one hundred thirty-nine billion, three hundred fifty-three million, four hundred fourteen thousand, six hundred forty-eight".