67706226432 has 144 divisors (see below), whose sum is σ = 215620987680. Its totient is φ = 20832657408.

The previous prime is 67706226347. The next prime is 67706226461. The reversal of 67706226432 is 23462260776.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×67706226432² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286893 + ... + 466604.

It is an arithmetic number, because the mean of its divisors is an integer number (1497367970).

Almost surely, 2^67706226432 is an apocalyptic number.

It is an amenable number.

67706226432 is an abundant number, since it is smaller than the sum of its proper divisors (147914761248).

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

67706226432 is a wasteful number, since it uses less digits than its factorization.

67706226432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753535 (or 753515 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 45.

The spelling of 67706226432 in words is "sixty-seven billion, seven hundred six million, two hundred twenty-six thousand, four hundred thirty-two".