49971137535 has 48 divisors (see below), whose sum is σ = 94575630240. Its totient is φ = 24206699520.

The previous prime is 49971137533. The next prime is 49971137561. The reversal of 49971137535 is 53573117994.

49971137535 is a `hidden beast` number, since 4 + 9 + 9 + 71 + 1 + 37 + 535 = 666.

It is not a de Polignac number, because 49971137535 - 2¹ = 49971137533 is a prime.

It is a super-2 number, since 2×49971137535² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49971137533) 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, 514147 + ... + 603563.

It is an arithmetic number, because the mean of its divisors is an integer number (1970325630).

Almost surely, 2^49971137535 is an apocalyptic number.

49971137535 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

49971137535 is a deficient number, since it is larger than the sum of its proper divisors (44604492705).

49971137535 is a wasteful number, since it uses less digits than its factorization.

49971137535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90568 (or 90565 counting only the distinct ones).

The product of its digits is 3572100, while the sum is 54.

The spelling of 49971137535 in words is "forty-nine billion, nine hundred seventy-one million, one hundred thirty-seven thousand, five hundred thirty-five".