53939970665379 has 24 divisors (see below), whose sum is σ = 79935841544832. Its totient is φ = 35029181854080.

The previous prime is 53939970665353. The next prime is 53939970665411. The reversal of 53939970665379 is 97356607993935.

53939970665379 is a `hidden beast` number, since 5 + 3 + 9 + 3 + 9 + 9 + 70 + 6 + 6 + 537 + 9 = 666.

It is not a de Polignac number, because 53939970665379 - 2¹³ = 53939970657187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53939970665298 and 53939970665307.

It is not an unprimeable number, because it can be changed into a prime (53939970625379) 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, 111687667 + ... + 112169580.

It is an arithmetic number, because the mean of its divisors is an integer number (3330660064368).

Almost surely, 2^{53939970665379} is an apocalyptic number.

53939970665379 is a deficient number, since it is larger than the sum of its proper divisors (25995870879453).

53939970665379 is a wasteful number, since it uses less digits than its factorization.

53939970665379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223857947 (or 223857944 counting only the distinct ones).

The product of its (nonzero) digits is 7812182700, while the sum is 81.

The spelling of 53939970665379 in words is "fifty-three trillion, nine hundred thirty-nine billion, nine hundred seventy million, six hundred sixty-five thousand, three hundred seventy-nine".