9940827925 has 48 divisors (see below), whose sum is σ = 14667212032. Its totient is φ = 6541171200.

The previous prime is 9940827899. The next prime is 9940827961. The reversal of 9940827925 is 5297280499.

It is not a de Polignac number, because 9940827925 - 2²⁷ = 9806610197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 462160 + ... + 483190.

Almost surely, 2^9940827925 is an apocalyptic number.

It is an amenable number.

9940827925 is a deficient number, since it is larger than the sum of its proper divisors (4726384107).

9940827925 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (9940827924) it forms an eRAP, since the sums of their prime factors are consecutive (21157 and 21158).

9940827925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21158 (or 21153 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 9940827925 is about 99703.7006585011. The cubic root of 9940827925 is about 2150.1768684494.

It can be divided in two parts, 9940 and 827925, that added together give a triangular number (837865 = T₁₂₉₄).

The spelling of 9940827925 in words is "nine billion, nine hundred forty million, eight hundred twenty-seven thousand, nine hundred twenty-five".