53694793971 has 60 divisors (see below), whose sum is σ = 98757503152. Its totient is φ = 28312034976.

The previous prime is 53694793967. The next prime is 53694793973. The reversal of 53694793971 is 17939749635.

53694793971 is a `hidden beast` number, since 5 + 3 + 69 + 479 + 39 + 71 = 666.

It is not a de Polignac number, because 53694793971 - 2² = 53694793967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 53694793899 and 53694793908.

It is not an unprimeable number, because it can be changed into a prime (53694793973) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 19892980 + ... + 19895678.

Almost surely, 2^53694793971 is an apocalyptic number.

53694793971 is a deficient number, since it is larger than the sum of its proper divisors (45062709181).

53694793971 is an frugal number, since it uses more digits than its factorization.

53694793971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5430 (or 2722 counting only the distinct ones).

The product of its digits is 38578680, while the sum is 63.

The spelling of 53694793971 in words is "fifty-three billion, six hundred ninety-four million, seven hundred ninety-three thousand, nine hundred seventy-one".