39484621261 has 4 divisors (see below), whose sum is σ = 39503988000. Its totient is φ = 39465254524.

The previous prime is 39484621213. The next prime is 39484621333. The reversal of 39484621261 is 16212648493.

39484621261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39484621261 is a prime.

It is a super-2 number, since 2×39484621261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39484621061) 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, 9680311 + ... + 9684388.

It is an arithmetic number, because the mean of its divisors is an integer number (9875997000).

Almost surely, 2^39484621261 is an apocalyptic number.

It is an amenable number.

39484621261 is a deficient number, since it is larger than the sum of its proper divisors (19366739).

39484621261 is a wasteful number, since it uses less digits than its factorization.

39484621261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19366738.

The product of its digits is 497664, while the sum is 46.

The spelling of 39484621261 in words is "thirty-nine billion, four hundred eighty-four million, six hundred twenty-one thousand, two hundred sixty-one".