49255009851 has 16 divisors (see below), whose sum is σ = 67079351808. Its totient is φ = 32133852000.

The previous prime is 49255009847. The next prime is 49255009861. The reversal of 49255009851 is 15890055294.

It is not a de Polignac number, because 49255009851 - 2² = 49255009847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49255009851.

It is not an unprimeable number, because it can be changed into a prime (49255009801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1371261 + ... + 1406721.

It is an arithmetic number, because the mean of its divisors is an integer number (4192459488).

Almost surely, 2^49255009851 is an apocalyptic number.

49255009851 is a deficient number, since it is larger than the sum of its proper divisors (17824341957).

49255009851 is a wasteful number, since it uses less digits than its factorization.

49255009851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45362.

The product of its (nonzero) digits is 648000, while the sum is 48.

The spelling of 49255009851 in words is "forty-nine billion, two hundred fifty-five million, nine thousand, eight hundred fifty-one".