49129217515 has 16 divisors (see below), whose sum is σ = 67392358848. Its totient is φ = 33681033216.

The previous prime is 49129217497. The next prime is 49129217531. The reversal of 49129217515 is 51571292194.

It is a cyclic number.

It is not a de Polignac number, because 49129217515 - 2¹⁷ = 49129086443 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2439 + ... + 313471.

It is an arithmetic number, because the mean of its divisors is an integer number (4212022428).

Almost surely, 2^49129217515 is an apocalyptic number.

49129217515 is a deficient number, since it is larger than the sum of its proper divisors (18263141333).

49129217515 is a wasteful number, since it uses less digits than its factorization.

49129217515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315558.

The product of its digits is 226800, while the sum is 46.

The spelling of 49129217515 in words is "forty-nine billion, one hundred twenty-nine million, two hundred seventeen thousand, five hundred fifteen".