49397018563431 has 40 divisors (see below), whose sum is σ = 91998680087424. Its totient is φ = 25660788860880.

The previous prime is 49397018563429. The next prime is 49397018563441. The reversal of 49397018563431 is 13436581079394.

It is a happy number.

49397018563431 is a `hidden beast` number, since 4 + 9 + 39 + 7 + 0 + 1 + 8 + 563 + 4 + 31 = 666.

It is not a de Polignac number, because 49397018563431 - 2¹ = 49397018563429 is a prime.

It is a super-2 number, since 2×49397018563431² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49397018563411) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3959992045 + ... + 3960004518.

Almost surely, 2^{49397018563431} is an apocalyptic number.

49397018563431 is a deficient number, since it is larger than the sum of its proper divisors (42601661523993).

49397018563431 is a wasteful number, since it uses less digits than its factorization.

49397018563431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7919996593 (or 7919996584 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 63.

The spelling of 49397018563431 in words is "forty-nine trillion, three hundred ninety-seven billion, eighteen million, five hundred sixty-three thousand, four hundred thirty-one".