78145602462072 has 48 divisors (see below), whose sum is σ = 218942420697000. Its totient is φ = 25150308837696.

The previous prime is 78145602462061. The next prime is 78145602462077. The reversal of 78145602462072 is 27026420654187.

78145602462072 is a `hidden beast` number, since 7 + 8 + 1 + 4 + 5 + 6 + 0 + 2 + 4 + 620 + 7 + 2 = 666.

It is a super-2 number, since 2×78145602462072² (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 (78145602462077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18713025322 + ... + 18713029497.

Almost surely, 2^{78145602462072} is an apocalyptic number.

78145602462072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78145602462072 is an abundant number, since it is smaller than the sum of its proper divisors (140796818234928).

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

78145602462072 is a wasteful number, since it uses less digits than its factorization.

78145602462072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37426054860 (or 37426054853 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 78145602462072 in words is "seventy-eight trillion, one hundred forty-five billion, six hundred two million, four hundred sixty-two thousand, seventy-two".