39480243961 has 4 divisors (see below), whose sum is σ = 39480643072. Its totient is φ = 39479844852.

The previous prime is 39480243953. The next prime is 39480243973. The reversal of 39480243961 is 16934208493.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 39480243961 - 2³ = 39480243953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39480243941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72040 + ... + 290086.

It is an arithmetic number, because the mean of its divisors is an integer number (9870160768).

Almost surely, 2^39480243961 is an apocalyptic number.

It is an amenable number.

39480243961 is a deficient number, since it is larger than the sum of its proper divisors (399111).

39480243961 is a wasteful number, since it uses less digits than its factorization.

39480243961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399110.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 39480243961 in words is "thirty-nine billion, four hundred eighty million, two hundred forty-three thousand, nine hundred sixty-one".