30899423625625 has 15 divisors (see below), whose sum is σ = 38612093417931. Its totient is φ = 24719427726000.

The previous prime is 30899423625611. The next prime is 30899423625649. The reversal of 30899423625625 is 52652632499803.

The square root of 30899423625625 is 5558725.

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

It can be written as a sum of positive squares in 7 ways, for example, as 23940147479689 + 6959276145936 = 4892867^2 + 2638044^2 .

It is not a de Polignac number, because 30899423625625 - 2¹⁷ = 30899423494553 is a prime.

It is a super-3 number, since 3×30899423625625³ (a number of 41 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 138856951 + ... + 139079299.

Almost surely, 2^{30899423625625} is an apocalyptic number.

30899423625625 is the 5558725-th square number.

30899423625625 is the 2779363-rd centered octagonal number.

It is an amenable number.

30899423625625 is a deficient number, since it is larger than the sum of its proper divisors (7712669792306).

30899423625625 is an frugal number, since it uses more digits than its factorization.

30899423625625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444718 (or 222354 counting only the distinct ones).

The product of its (nonzero) digits is 167961600, while the sum is 64.

The spelling of 30899423625625 in words is "thirty trillion, eight hundred ninety-nine billion, four hundred twenty-three million, six hundred twenty-five thousand, six hundred twenty-five".