951902661 has 4 divisors (see below), whose sum is σ = 1269203552. Its totient is φ = 634601772.

The previous prime is 951902629. The next prime is 951902671. The reversal of 951902661 is 166209159.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 951902661 - 2⁵ = 951902629 is a prime.

It is a super-2 number, since 2×951902661² = 1812237352037761842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (951902671) 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, 158650441 + ... + 158650446.

It is an arithmetic number, because the mean of its divisors is an integer number (317300888).

Almost surely, 2^951902661 is an apocalyptic number.

It is an amenable number.

951902661 is a deficient number, since it is larger than the sum of its proper divisors (317300891).

951902661 is a wasteful number, since it uses less digits than its factorization.

951902661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317300890.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 951902661 is about 30852.9198132041. The cubic root of 951902661 is about 983.7034177480.

The spelling of 951902661 in words is "nine hundred fifty-one million, nine hundred two thousand, six hundred sixty-one".