1975768497 has 8 divisors (see below), whose sum is σ = 2927064480. Its totient is φ = 1317178980.

The previous prime is 1975768489. The next prime is 1975768549. The reversal of 1975768497 is 7948675791.

1975768497 is a `hidden beast` number, since 1 + 9 + 75 + 76 + 8 + 497 = 666.

It is not a de Polignac number, because 1975768497 - 2³ = 1975768489 is a prime.

It is a super-2 number, since 2×1975768497² = 7807322307475278018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1975768097) 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, 36588279 + ... + 36588332.

It is an arithmetic number, because the mean of its divisors is an integer number (365883060).

Almost surely, 2^1975768497 is an apocalyptic number.

It is an amenable number.

1975768497 is a deficient number, since it is larger than the sum of its proper divisors (951295983).

1975768497 is an equidigital number, since it uses as much as digits as its factorization.

1975768497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73176620 (or 73176614 counting only the distinct ones).

The product of its digits is 26671680, while the sum is 63.

The square root of 1975768497 is about 44449.6175124151. The cubic root of 1975768497 is about 1254.8120641529.

The spelling of 1975768497 in words is "one billion, nine hundred seventy-five million, seven hundred sixty-eight thousand, four hundred ninety-seven".