67508311952 has 10 divisors (see below), whose sum is σ = 130797354438. Its totient is φ = 33754155968.

The previous prime is 67508311903. The next prime is 67508311991. The reversal of 67508311952 is 25911380576.

It can be written as a sum of positive squares in only one way, i.e., 66283591936 + 1224720016 = 257456^2 + 34996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67508311897 and 67508311906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2109634733 + ... + 2109634764.

Almost surely, 2^67508311952 is an apocalyptic number.

It is an amenable number.

67508311952 is a deficient number, since it is larger than the sum of its proper divisors (63289042486).

67508311952 is a wasteful number, since it uses less digits than its factorization.

67508311952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219269505 (or 4219269499 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 67508311952 in words is "sixty-seven billion, five hundred eight million, three hundred eleven thousand, nine hundred fifty-two".