949406640625 has 27 divisors (see below), whose sum is σ = 1187519411521. Its totient is φ = 759038125000.

The previous prime is 949406640613. The next prime is 949406640641. The reversal of 949406640625 is 526046604949.

The square root of 949406640625 is 974375.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 675015057649 + 274391582976 = 821593^2 + 523824^2 .

It is not a de Polignac number, because 949406640625 - 2²¹ = 949404543473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 608983596 + ... + 608985154.

Almost surely, 2^949406640625 is an apocalyptic number.

949406640625 is the 974375-th square number.

949406640625 is the 487188-th centered octagonal number.

It is an amenable number.

949406640625 is a deficient number, since it is larger than the sum of its proper divisors (238112770896).

949406640625 is an frugal number, since it uses more digits than its factorization.

949406640625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158 (or 1564 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 949406640625 in words is "nine hundred forty-nine billion, four hundred six million, six hundred forty thousand, six hundred twenty-five".