7921265902 has 8 divisors (see below), whose sum is σ = 12962071512. Its totient is φ = 3600575400.

The previous prime is 7921265899. The next prime is 7921265903. The reversal of 7921265902 is 2095621297.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7921265903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180028749 + ... + 180028792.

It is an arithmetic number, because the mean of its divisors is an integer number (1620258939).

Almost surely, 2^7921265902 is an apocalyptic number.

7921265902 is a deficient number, since it is larger than the sum of its proper divisors (5040805610).

7921265902 is a wasteful number, since it uses less digits than its factorization.

7921265902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360057554.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 7921265902 is about 89001.4938189242. The cubic root of 7921265902 is about 1993.4171821929.

The spelling of 7921265902 in words is "seven billion, nine hundred twenty-one million, two hundred sixty-five thousand, nine hundred two".