213261438502 has 32 divisors (see below), whose sum is σ = 377825310720. Its totient is φ = 88346082240.

The previous prime is 213261438493. The next prime is 213261438553. The reversal of 213261438502 is 205834162312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85249 + ... + 658627.

It is an arithmetic number, because the mean of its divisors is an integer number (11807040960).

Almost surely, 2^213261438502 is an apocalyptic number.

213261438502 is a deficient number, since it is larger than the sum of its proper divisors (164563872218).

213261438502 is a wasteful number, since it uses less digits than its factorization.

213261438502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574276.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 213261438502 in words is "two hundred thirteen billion, two hundred sixty-one million, four hundred thirty-eight thousand, five hundred two".