521377604102 has 16 divisors (see below), whose sum is σ = 783912246000. Its totient is φ = 260073894528.

The previous prime is 521377604101. The next prime is 521377604107. The reversal of 521377604102 is 201406773125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521377604101) 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 7 ways as a sum of consecutive naturals, for example, 2759858 + ... + 2942714.

It is an arithmetic number, because the mean of its divisors is an integer number (48994515375).

Almost surely, 2^521377604102 is an apocalyptic number.

521377604102 is a deficient number, since it is larger than the sum of its proper divisors (262534641898).

521377604102 is a wasteful number, since it uses less digits than its factorization.

521377604102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186215.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 521377604102 in words is "five hundred twenty-one billion, three hundred seventy-seven million, six hundred four thousand, one hundred two".