123680679552 has 48 divisors (see below), whose sum is σ = 355904042130. Its totient is φ = 41226892800.

The previous prime is 123680679517. The next prime is 123680679559. The reversal of 123680679552 is 255976086321.

123680679552 is a `hidden beast` number, since 1 + 2 + 3 + 6 + 80 + 6 + 7 + 9 + 552 = 666.

It can be written as a sum of positive squares in only one way, i.e., 122091541056 + 1589138496 = 349416^2 + 39864^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (123680679559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53679699 + ... + 53682002.

Almost surely, 2^123680679552 is an apocalyptic number.

123680679552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123680679552 is an abundant number, since it is smaller than the sum of its proper divisors (232223362578).

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

123680679552 is a wasteful number, since it uses less digits than its factorization.

123680679552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107361721 (or 107361706 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 123680679552 in words is "one hundred twenty-three billion, six hundred eighty million, six hundred seventy-nine thousand, five hundred fifty-two".