6157872506 has 4 divisors (see below), whose sum is σ = 9236808762. Its totient is φ = 3078936252.

The previous prime is 6157872473. The next prime is 6157872509. The reversal of 6157872506 is 6052787516.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3170703481 + 2987169025 = 56309^2 + 54655^2 .

It is not an unprimeable number, because it can be changed into a prime (6157872509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1539468125 + ... + 1539468128.

Almost surely, 2^6157872506 is an apocalyptic number.

6157872506 is a deficient number, since it is larger than the sum of its proper divisors (3078936256).

6157872506 is a wasteful number, since it uses less digits than its factorization.

6157872506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078936255.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 6157872506 is about 78472.1129191766. The cubic root of 6157872506 is about 1832.9202289131.

The spelling of 6157872506 in words is "six billion, one hundred fifty-seven million, eight hundred seventy-two thousand, five hundred six".