3934861536 has 24 divisors (see below), whose sum is σ = 10329011784. Its totient is φ = 1311620480.

The previous prime is 3934861519. The next prime is 3934861543. The reversal of 3934861536 is 6351684393.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20493975 + ... + 20494166.

It is an arithmetic number, because the mean of its divisors is an integer number (430375491).

Almost surely, 2^3934861536 is an apocalyptic number.

It is an amenable number.

3934861536 is an abundant number, since it is smaller than the sum of its proper divisors (6394150248).

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

3934861536 is a wasteful number, since it uses less digits than its factorization.

3934861536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40988154 (or 40988146 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 48.

The square root of 3934861536 is about 62728.4746825554. The cubic root of 3934861536 is about 1578.7371118748.

The spelling of 3934861536 in words is "three billion, nine hundred thirty-four million, eight hundred sixty-one thousand, five hundred thirty-six".