2071581954 has 32 divisors (see below), whose sum is σ = 4724334720. Its totient is φ = 599914752.

The previous prime is 2071581943. The next prime is 2071581983. The reversal of 2071581954 is 4591851702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 779814 + ... + 782465.

It is an arithmetic number, because the mean of its divisors is an integer number (147635460).

Almost surely, 2^2071581954 is an apocalyptic number.

2071581954 is an abundant number, since it is smaller than the sum of its proper divisors (2652752766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2071581954 is a wasteful number, since it uses less digits than its factorization.

2071581954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562314.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 2071581954 is about 45514.6345036407. The cubic root of 2071581954 is about 1274.7764732330.

The spelling of 2071581954 in words is "two billion, seventy-one million, five hundred eighty-one thousand, nine hundred fifty-four".