474778751 has 2 divisors, whose sum is σ = 474778752. Its totient is φ = 474778750.

The previous prime is 474778699. The next prime is 474778763. The reversal of 474778751 is 157877474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 474778751 - 2⁶ = 474778687 is a prime.

It is a super-2 number, since 2×474778751² = 450829724802240002, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 474778751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474078751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237389375 + 237389376.

It is an arithmetic number, because the mean of its divisors is an integer number (237389376).

Almost surely, 2^474778751 is an apocalyptic number.

474778751 is a deficient number, since it is larger than the sum of its proper divisors (1).

474778751 is an equidigital number, since it uses as much as digits as its factorization.

474778751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536640, while the sum is 50.

The square root of 474778751 is about 21789.4183263345. The cubic root of 474778751 is about 780.1242137268.

The spelling of 474778751 in words is "four hundred seventy-four million, seven hundred seventy-eight thousand, seven hundred fifty-one".