49661951614939 has 4 divisors (see below), whose sum is σ = 52583242886424. Its totient is φ = 46740660343456.

The previous prime is 49661951614931. The next prime is 49661951614943. The reversal of 49661951614939 is 93941615916694.

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

It is a cyclic number.

It is not a de Polignac number, because 49661951614939 - 2³ = 49661951614931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49661951614931) 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, 1460645635717 + ... + 1460645635750.

It is an arithmetic number, because the mean of its divisors is an integer number (13145810721606).

Almost surely, 2^{49661951614939} is an apocalyptic number.

49661951614939 is a deficient number, since it is larger than the sum of its proper divisors (2921291271485).

49661951614939 is a wasteful number, since it uses less digits than its factorization.

49661951614939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921291271484.

The product of its digits is 340122240, while the sum is 73.

The spelling of 49661951614939 in words is "forty-nine trillion, six hundred sixty-one billion, nine hundred fifty-one million, six hundred fourteen thousand, nine hundred thirty-nine".