78133610680 has 16 divisors (see below), whose sum is σ = 175800624120. Its totient is φ = 31253444256.

The previous prime is 78133610663. The next prime is 78133610689. The reversal of 78133610680 is 8601633187.

It is a super-2 number, since 2×78133610680² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78133610689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976670094 + ... + 976670173.

Almost surely, 2^78133610680 is an apocalyptic number.

It is an amenable number.

78133610680 is an abundant number, since it is smaller than the sum of its proper divisors (97667013440).

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

78133610680 is a wasteful number, since it uses less digits than its factorization.

78133610680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953340278 (or 1953340274 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 78133610680 in words is "seventy-eight billion, one hundred thirty-three million, six hundred ten thousand, six hundred eighty".