83381485977 has 24 divisors (see below), whose sum is σ = 125999640000. Its totient is φ = 53034065568.

The previous prime is 83381485973. The next prime is 83381486003. The reversal of 83381485977 is 77958418338.

83381485977 is a `hidden beast` number, since 8 + 3 + 3 + 81 + 485 + 9 + 77 = 666.

It is not a de Polignac number, because 83381485977 - 2² = 83381485973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83381485973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 437227 + ... + 598272.

It is an arithmetic number, because the mean of its divisors is an integer number (5249985000).

Almost surely, 2^83381485977 is an apocalyptic number.

It is an amenable number.

83381485977 is a deficient number, since it is larger than the sum of its proper divisors (42618154023).

83381485977 is a wasteful number, since it uses less digits than its factorization.

83381485977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035917 (or 1035914 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 83381485977 in words is "eighty-three billion, three hundred eighty-one million, four hundred eighty-five thousand, nine hundred seventy-seven".