39990111001001 has 16 divisors (see below), whose sum is σ = 45780440364288. Its totient is φ = 34219152820800.

The previous prime is 39990111000967. The next prime is 39990111001019. The reversal of 39990111001001 is 10010011109993.

It is a cyclic number.

It is not a de Polignac number, because 39990111001001 - 2²² = 39990106806697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39990111004001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69360131 + ... + 69934311.

It is an arithmetic number, because the mean of its divisors is an integer number (2861277522768).

Almost surely, 2^{39990111001001} is an apocalyptic number.

It is an amenable number.

39990111001001 is a deficient number, since it is larger than the sum of its proper divisors (5790329363287).

39990111001001 is a wasteful number, since it uses less digits than its factorization.

39990111001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591032.

The product of its (nonzero) digits is 2187, while the sum is 35.

The spelling of 39990111001001 in words is "thirty-nine trillion, nine hundred ninety billion, one hundred eleven million, one thousand, one".