1955994915 has 16 divisors (see below), whose sum is σ = 3576676608. Its totient is φ = 894169056.

The previous prime is 1955994907. The next prime is 1955994991. The reversal of 1955994915 is 5194995591.

It is not a de Polignac number, because 1955994915 - 2³ = 1955994907 is a prime.

It is a super-2 number, since 2×1955994915² = 7651832215011714450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9314157 + ... + 9314366.

It is an arithmetic number, because the mean of its divisors is an integer number (223542288).

Almost surely, 2^1955994915 is an apocalyptic number.

1955994915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1955994915 is a deficient number, since it is larger than the sum of its proper divisors (1620681693).

1955994915 is a wasteful number, since it uses less digits than its factorization.

1955994915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18628538.

The product of its digits is 3280500, while the sum is 57.

The square root of 1955994915 is about 44226.6312870424. The cubic root of 1955994915 is about 1250.6119488993.

The spelling of 1955994915 in words is "one billion, nine hundred fifty-five million, nine hundred ninety-four thousand, nine hundred fifteen".