1972777059 has 16 divisors (see below), whose sum is σ = 3188327040. Its totient is φ = 1195622280.

The previous prime is 1972777057. The next prime is 1972777067. The reversal of 1972777059 is 9507772791.

It is not a de Polignac number, because 1972777059 - 2¹ = 1972777057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1972776996 and 1972777014.

It is not an unprimeable number, because it can be changed into a prime (1972777057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3320877 + ... + 3321470.

It is an arithmetic number, because the mean of its divisors is an integer number (199270440).

Almost surely, 2^1972777059 is an apocalyptic number.

1972777059 is a deficient number, since it is larger than the sum of its proper divisors (1215549981).

1972777059 is a wasteful number, since it uses less digits than its factorization.

1972777059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6642367 (or 6642361 counting only the distinct ones).

The product of its (nonzero) digits is 1944810, while the sum is 54.

The square root of 1972777059 is about 44415.9550049304. The cubic root of 1972777059 is about 1254.1784560936.

The spelling of 1972777059 in words is "one billion, nine hundred seventy-two million, seven hundred seventy-seven thousand, fifty-nine".