2475247978 has 32 divisors (see below), whose sum is σ = 4362409728. Its totient is φ = 1031097600.

The previous prime is 2475247961. The next prime is 2475247981. The reversal of 2475247978 is 8797425742.

It is a super-2 number, since 2×2475247978² = 12253705105186176968, 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, 703243 + ... + 706753.

It is an arithmetic number, because the mean of its divisors is an integer number (136325304).

Almost surely, 2^2475247978 is an apocalyptic number.

2475247978 is a deficient number, since it is larger than the sum of its proper divisors (1887161750).

2475247978 is a wasteful number, since it uses less digits than its factorization.

2475247978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918.

The product of its digits is 7902720, while the sum is 55.

The square root of 2475247978 is about 49751.8640655805. The cubic root of 2475247978 is about 1352.7147890570.

The spelling of 2475247978 in words is "two billion, four hundred seventy-five million, two hundred forty-seven thousand, nine hundred seventy-eight".