2971255878 has 32 divisors (see below), whose sum is σ = 6617293920. Its totient is φ = 988243200.

The previous prime is 2971255877. The next prime is 2971255883. The reversal of 2971255878 is 8785521792.

2971255878 is a `hidden beast` number, since 2 + 9 + 7 + 12 + 558 + 78 = 666.

It is a super-2 number, since 2×2971255878² = 17656722985099101768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2971255873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35523 + ... + 84878.

It is an arithmetic number, because the mean of its divisors is an integer number (206790435).

Almost surely, 2^2971255878 is an apocalyptic number.

2971255878 is an abundant number, since it is smaller than the sum of its proper divisors (3646038042).

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

2971255878 is a wasteful number, since it uses less digits than its factorization.

2971255878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120869 (or 120863 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 54.

The square root of 2971255878 is about 54509.2274573764. The cubic root of 2971255878 is about 1437.6285359343.

The spelling of 2971255878 in words is "two billion, nine hundred seventy-one million, two hundred fifty-five thousand, eight hundred seventy-eight".