331077949961 has 4 divisors (see below), whose sum is σ = 361175945424. Its totient is φ = 300979954500.

The previous prime is 331077949931. The next prime is 331077949981. The reversal of 331077949961 is 169949770133.

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-331077949961 is a prime.

It is a super-2 number, since 2×331077949961² (a number of 24 digits) contains 22 as substring.

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 331077949961.

It is not an unprimeable number, because it can be changed into a prime (331077949931) 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, 15048997715 + ... + 15048997736.

It is an arithmetic number, because the mean of its divisors is an integer number (90293986356).

Almost surely, 2^331077949961 is an apocalyptic number.

It is an amenable number.

331077949961 is a deficient number, since it is larger than the sum of its proper divisors (30097995463).

331077949961 is a wasteful number, since it uses less digits than its factorization.

331077949961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30097995462.

The product of its (nonzero) digits is 7715736, while the sum is 59.

The spelling of 331077949961 in words is "three hundred thirty-one billion, seventy-seven million, nine hundred forty-nine thousand, nine hundred sixty-one".