3851948977 has 2 divisors, whose sum is σ = 3851948978. Its totient is φ = 3851948976.

The previous prime is 3851948959. The next prime is 3851949019. The reversal of 3851948977 is 7798491583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3218973696 + 632975281 = 56736^2 + 25159^2 .

It is a cyclic number.

It is not a de Polignac number, because 3851948977 - 2²⁷ = 3717731249 is a prime.

It is a super-2 number, since 2×3851948977² = 29675021842822693058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3851946977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1925974488 + 1925974489.

It is an arithmetic number, because the mean of its divisors is an integer number (1925974489).

Almost surely, 2^3851948977 is an apocalyptic number.

It is an amenable number.

3851948977 is a deficient number, since it is larger than the sum of its proper divisors (1).

3851948977 is an equidigital number, since it uses as much as digits as its factorization.

3851948977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 61.

The square root of 3851948977 is about 62064.0715470714. The cubic root of 3851948977 is about 1567.5696337773.

The spelling of 3851948977 in words is "three billion, eight hundred fifty-one million, nine hundred forty-eight thousand, nine hundred seventy-seven".