77373171216 has 360 divisors, whose sum is σ = 248587874080. Its totient is φ = 23279477760.

The previous prime is 77373171199. The next prime is 77373171241. The reversal of 77373171216 is 61217137377.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 76682520 + ... + 76683528.

Almost surely, 2^77373171216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77373171216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124293937040).

77373171216 is an abundant number, since it is smaller than the sum of its proper divisors (171214702864).

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

77373171216 is a wasteful number, since it uses less digits than its factorization.

77373171216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217 (or 1188 counting only the distinct ones).

The product of its digits is 259308, while the sum is 45.

The spelling of 77373171216 in words is "seventy-seven billion, three hundred seventy-three million, one hundred seventy-one thousand, two hundred sixteen".