1955988770 has 16 divisors (see below), whose sum is σ = 3673857600. Its totient is φ = 748378224.

The previous prime is 1955988677. The next prime is 1955988787. The reversal of 1955988770 is 778895591.

It is a super-2 number, since 2×1955988770² = 7651784136732225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4251920 + ... + 4252379.

It is an arithmetic number, because the mean of its divisors is an integer number (229616100).

Almost surely, 2^1955988770 is an apocalyptic number.

1955988770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955988770 is a deficient number, since it is larger than the sum of its proper divisors (1717868830).

1955988770 is a wasteful number, since it uses less digits than its factorization.

1955988770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8504329.

The product of its (nonzero) digits is 6350400, while the sum is 59.

The square root of 1955988770 is about 44226.5618152711. The cubic root of 1955988770 is about 1250.6106392472.

The spelling of 1955988770 in words is "one billion, nine hundred fifty-five million, nine hundred eighty-eight thousand, seven hundred seventy".