3984047259901 has 4 divisors (see below), whose sum is σ = 4059217962972. Its totient is φ = 3908876556832.

The previous prime is 3984047259883. The next prime is 3984047259979. The reversal of 3984047259901 is 1099527404893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3155490376900 + 828556883001 = 1776370^2 + 910251^2 .

It is a cyclic number.

It is not a de Polignac number, because 3984047259901 - 2⁴¹ = 1785024004349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3984047259901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984047259001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37585351456 + ... + 37585351561.

It is an arithmetic number, because the mean of its divisors is an integer number (1014804490743).

Almost surely, 2^{3984047259901} is an apocalyptic number.

It is an amenable number.

3984047259901 is a deficient number, since it is larger than the sum of its proper divisors (75170703071).

3984047259901 is an equidigital number, since it uses as much as digits as its factorization.

3984047259901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75170703070.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 3984047259901 in words is "three trillion, nine hundred eighty-four billion, forty-seven million, two hundred fifty-nine thousand, nine hundred one".