3915461538 has 16 divisors (see below), whose sum is σ = 8701025760. Its totient is φ = 1305153828.

The previous prime is 3915461531. The next prime is 3915461567. The reversal of 3915461538 is 8351645193.

3915461538 is a `hidden beast` number, since 3 + 9 + 1 + 54 + 61 + 538 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3915461493 and 3915461502.

It is not an unprimeable number, because it can be changed into a prime (3915461531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36254220 + ... + 36254327.

It is an arithmetic number, because the mean of its divisors is an integer number (543814110).

Almost surely, 2^3915461538 is an apocalyptic number.

3915461538 is an abundant number, since it is smaller than the sum of its proper divisors (4785564222).

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

3915461538 is a wasteful number, since it uses less digits than its factorization.

3915461538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72508558 (or 72508552 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 3915461538 is about 62573.6489107036. The cubic root of 3915461538 is about 1576.1382936805.

The spelling of 3915461538 in words is "three billion, nine hundred fifteen million, four hundred sixty-one thousand, five hundred thirty-eight".