3900156081587 has 8 divisors (see below), whose sum is σ = 3955767028992. Its totient is φ = 3844564000200.

The previous prime is 3900156081487. The next prime is 3900156081671. The reversal of 3900156081587 is 7851806510093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3900156081587 - 2³² = 3895861114291 is a prime.

It is a super-2 number, since 2×3900156081587² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3900156081187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4299839 + ... + 5127272.

It is an arithmetic number, because the mean of its divisors is an integer number (494470878624).

Almost surely, 2^{3900156081587} is an apocalyptic number.

3900156081587 is a deficient number, since it is larger than the sum of its proper divisors (55610947405).

3900156081587 is an equidigital number, since it uses as much as digits as its factorization.

3900156081587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9433009.

The product of its (nonzero) digits is 1814400, while the sum is 53.

The spelling of 3900156081587 in words is "three trillion, nine hundred billion, one hundred fifty-six million, eighty-one thousand, five hundred eighty-seven".