1977297560339 has 8 divisors (see below), whose sum is σ = 2045171712000. Its totient is φ = 1909679056200.

The previous prime is 1977297560291. The next prime is 1977297560351. The reversal of 1977297560339 is 9330657927791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1977297560339 - 2²⁰ = 1977296511763 is a prime.

It is a super-2 number, since 2×1977297560339² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1977297566339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63896147 + ... + 63927084.

It is an arithmetic number, because the mean of its divisors is an integer number (255646464000).

Almost surely, 2^{1977297560339} is an apocalyptic number.

1977297560339 is a deficient number, since it is larger than the sum of its proper divisors (67874151661).

1977297560339 is a wasteful number, since it uses less digits than its factorization.

1977297560339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127823761.

The product of its (nonzero) digits is 135025380, while the sum is 68.

The spelling of 1977297560339 in words is "one trillion, nine hundred seventy-seven billion, two hundred ninety-seven million, five hundred sixty thousand, three hundred thirty-nine".