990125000995 has 32 divisors (see below), whose sum is σ = 1286561630592. Its totient is φ = 727170711552.

The previous prime is 990125000933. The next prime is 990125000999. The reversal of 990125000995 is 599000521099.

It is a happy number.

It is a 15-Lehmer number, since φ(990125000995) divides (990125000995-1)¹⁵.

It is a cyclic number.

It is not a de Polignac number, because 990125000995 - 2²⁵ = 990091446563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990125000999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9221539 + ... + 9328291.

It is an arithmetic number, because the mean of its divisors is an integer number (40205050956).

Almost surely, 2^990125000995 is an apocalyptic number.

990125000995 is a deficient number, since it is larger than the sum of its proper divisors (296436629597).

990125000995 is a wasteful number, since it uses less digits than its factorization.

990125000995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107551.

The product of its (nonzero) digits is 328050, while the sum is 49.

The spelling of 990125000995 in words is "nine hundred ninety billion, one hundred twenty-five million, nine hundred ninety-five", and thus it is an aban number.