3954644676 has 18 divisors (see below), whose sum is σ = 9996463022. Its totient is φ = 1318214880.

The previous prime is 3954644671. The next prime is 3954644689. The reversal of 3954644676 is 6764464593.

It is a happy number.

3954644676 is a `hidden beast` number, since 3 + 95 + 46 + 446 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3760878276 + 193766400 = 61326^2 + 13920^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (3954644671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54925585 + ... + 54925656.

Almost surely, 2^3954644676 is an apocalyptic number.

3954644676 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3954644676 is an abundant number, since it is smaller than the sum of its proper divisors (6041818346).

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

3954644676 is a wasteful number, since it uses less digits than its factorization.

3954644676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109851251 (or 109851246 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The square root of 3954644676 is about 62885.9656521230. The cubic root of 3954644676 is about 1581.3784738662.

The spelling of 3954644676 in words is "three billion, nine hundred fifty-four million, six hundred forty-four thousand, six hundred seventy-six".