63976374873 has 24 divisors (see below), whose sum is σ = 98011361448. Its totient is φ = 40074289152.

The previous prime is 63976374863. The next prime is 63976374887. The reversal of 63976374873 is 37847367936.

63976374873 is a `hidden beast` number, since 6 + 3 + 97 + 63 + 7 + 487 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 39060383769 + 24915991104 = 197637^2 + 157848^2 .

It is not a de Polignac number, because 63976374873 - 2⁴ = 63976374857 is a prime.

It is a super-2 number, since 2×63976374873² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63976374873.

It is not an unprimeable number, because it can be changed into a prime (63976374823) 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, 261840 + ... + 443297.

It is an arithmetic number, because the mean of its divisors is an integer number (4083806727).

Almost surely, 2^63976374873 is an apocalyptic number.

It is an amenable number.

63976374873 is a deficient number, since it is larger than the sum of its proper divisors (34034986575).

63976374873 is a wasteful number, since it uses less digits than its factorization.

63976374873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705753 (or 705750 counting only the distinct ones).

The product of its digits is 96018048, while the sum is 63.

The spelling of 63976374873 in words is "sixty-three billion, nine hundred seventy-six million, three hundred seventy-four thousand, eight hundred seventy-three".