3778913025 has 36 divisors (see below), whose sum is σ = 6782548032. Its totient is φ = 2011223520.

The previous prime is 3778913023. The next prime is 3778913027. The reversal of 3778913025 is 5203198773.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3778913023) and next prime (3778913027).

It is not a de Polignac number, because 3778913025 - 2¹ = 3778913023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3778913023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 92332 + ... + 126818.

It is an arithmetic number, because the mean of its divisors is an integer number (188404112).

Almost surely, 2^3778913025 is an apocalyptic number.

It is an amenable number.

3778913025 is a deficient number, since it is larger than the sum of its proper divisors (3003635007).

3778913025 is a wasteful number, since it uses less digits than its factorization.

3778913025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34990 (or 34982 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 3778913025 is about 61472.8641353240. The cubic root of 3778913025 is about 1557.5989011276.

The spelling of 3778913025 in words is "three billion, seven hundred seventy-eight million, nine hundred thirteen thousand, twenty-five".