15348307961 has 4 divisors (see below), whose sum is σ = 17540923392. Its totient is φ = 13155692532.

The previous prime is 15348307957. The next prime is 15348307969. The reversal of 15348307961 is 16970384351.

It is a happy number.

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 not a de Polignac number, because 15348307961 - 2² = 15348307957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15348307969) 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, 1096307705 + ... + 1096307718.

It is an arithmetic number, because the mean of its divisors is an integer number (4385230848).

Almost surely, 2^15348307961 is an apocalyptic number.

It is an amenable number.

15348307961 is a deficient number, since it is larger than the sum of its proper divisors (2192615431).

15348307961 is an equidigital number, since it uses as much as digits as its factorization.

15348307961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192615430.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 15348307961 in words is "fifteen billion, three hundred forty-eight million, three hundred seven thousand, nine hundred sixty-one".