49161137619 has 48 divisors (see below), whose sum is σ = 74875917312. Its totient is φ = 28424424000.

The previous prime is 49161137603. The next prime is 49161137621. The reversal of 49161137619 is 91673116194.

It is not a de Polignac number, because 49161137619 - 2⁴ = 49161137603 is a prime.

It is a super-2 number, since 2×49161137619² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49161137119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5152177 + ... + 5161709.

It is an arithmetic number, because the mean of its divisors is an integer number (1559914944).

Almost surely, 2^49161137619 is an apocalyptic number.

49161137619 is a deficient number, since it is larger than the sum of its proper divisors (25714779693).

49161137619 is a wasteful number, since it uses less digits than its factorization.

49161137619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9720 (or 9649 counting only the distinct ones).

The product of its digits is 244944, while the sum is 48.

The spelling of 49161137619 in words is "forty-nine billion, one hundred sixty-one million, one hundred thirty-seven thousand, six hundred nineteen".