977401920105 has 64 divisors (see below), whose sum is σ = 1873936995840. Its totient is φ = 480495456000.

The previous prime is 977401920091. The next prime is 977401920119. The reversal of 977401920105 is 501029104779.

It is an interprime number because it is at equal distance from previous prime (977401920091) and next prime (977401920119).

It is not a de Polignac number, because 977401920105 - 2¹⁵ = 977401887337 is a prime.

It is a super-2 number, since 2×977401920105² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 833020 + ... + 1627490.

It is an arithmetic number, because the mean of its divisors is an integer number (29280265560).

Almost surely, 2^977401920105 is an apocalyptic number.

It is an amenable number.

977401920105 is a deficient number, since it is larger than the sum of its proper divisors (896535075735).

977401920105 is a wasteful number, since it uses less digits than its factorization.

977401920105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795199 (or 795193 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The spelling of 977401920105 in words is "nine hundred seventy-seven billion, four hundred one million, nine hundred twenty thousand, one hundred five".