6626870157 has 4 divisors (see below), whose sum is σ = 8835826880. Its totient is φ = 4417913436.

The previous prime is 6626870143. The next prime is 6626870161. The reversal of 6626870157 is 7510786266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6626870157 - 2¹⁰ = 6626869133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6626870167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104478357 + ... + 1104478362.

It is an arithmetic number, because the mean of its divisors is an integer number (2208956720).

Almost surely, 2^6626870157 is an apocalyptic number.

It is an amenable number.

6626870157 is a deficient number, since it is larger than the sum of its proper divisors (2208956723).

6626870157 is a wasteful number, since it uses less digits than its factorization.

6626870157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208956722.

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 6626870157 is about 81405.5904529904. The cubic root of 6626870157 is about 1878.3195861216.

The spelling of 6626870157 in words is "six billion, six hundred twenty-six million, eight hundred seventy thousand, one hundred fifty-seven".