521350076830 has 16 divisors (see below), whose sum is σ = 1023741969264. Its totient is φ = 189581846080.

The previous prime is 521350076801. The next prime is 521350076837. The reversal of 521350076830 is 38670053125.

It is a super-2 number, since 2×521350076830² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521350076837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2369772967 + ... + 2369773186.

It is an arithmetic number, because the mean of its divisors is an integer number (63983873079).

Almost surely, 2^521350076830 is an apocalyptic number.

521350076830 is a deficient number, since it is larger than the sum of its proper divisors (502391892434).

521350076830 is a wasteful number, since it uses less digits than its factorization.

521350076830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4739546171.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 521350076830 in words is "five hundred twenty-one billion, three hundred fifty million, seventy-six thousand, eight hundred thirty".