70179147157 has 6 divisors (see below), whose sum is σ = 81636967158. Its totient is φ = 60153554664.

The previous prime is 70179147149. The next prime is 70179147163. The reversal of 70179147157 is 75174197107.

It can be written as a sum of positive squares in only one way, i.e., 51543074961 + 18636072196 = 227031^2 + 136514^2 .

It is not a de Polignac number, because 70179147157 - 2³ = 70179147149 is a prime.

It is a super-2 number, since 2×70179147157² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 1432227493 = 70179147157 / (7 + 0 + 1 + 7 + 9 + 1 + 4 + 7 + 1 + 5 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70179147157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70179144157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 716113698 + ... + 716113795.

It is an arithmetic number, because the mean of its divisors is an integer number (13606161193).

Almost surely, 2^70179147157 is an apocalyptic number.

It is an amenable number.

70179147157 is a deficient number, since it is larger than the sum of its proper divisors (11457820001).

70179147157 is a wasteful number, since it uses less digits than its factorization.

70179147157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432227507 (or 1432227500 counting only the distinct ones).

The product of its (nonzero) digits is 432180, while the sum is 49.

The spelling of 70179147157 in words is "seventy billion, one hundred seventy-nine million, one hundred forty-seven thousand, one hundred fifty-seven".