67970663157 has 16 divisors (see below), whose sum is σ = 91003506048. Its totient is φ = 45126070080.

The previous prime is 67970663149. The next prime is 67970663177. The reversal of 67970663157 is 75136607976.

It is not a de Polignac number, because 67970663157 - 2³ = 67970663149 is a prime.

It is a super-2 number, since 2×67970663157² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67970663097 and 67970663106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67970663177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 986443 + ... + 1053095.

It is an arithmetic number, because the mean of its divisors is an integer number (5687719128).

Almost surely, 2^67970663157 is an apocalyptic number.

It is an amenable number.

67970663157 is a deficient number, since it is larger than the sum of its proper divisors (23032842891).

67970663157 is a wasteful number, since it uses less digits than its factorization.

67970663157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68060.

The product of its (nonzero) digits is 10001880, while the sum is 57.

The spelling of 67970663157 in words is "sixty-seven billion, nine hundred seventy million, six hundred sixty-three thousand, one hundred fifty-seven".