49372720081 has 8 divisors (see below), whose sum is σ = 51089814720. Its totient is φ = 47656597968.

The previous prime is 49372720039. The next prime is 49372720087. The reversal of 49372720081 is 18002727394.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49372720081 - 2¹⁵ = 49372687313 is a prime.

It is a super-2 number, since 2×49372720081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49372720087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139071 + ... + 343636.

It is an arithmetic number, because the mean of its divisors is an integer number (6386226840).

Almost surely, 2^49372720081 is an apocalyptic number.

It is an amenable number.

49372720081 is a deficient number, since it is larger than the sum of its proper divisors (1717094639).

49372720081 is a wasteful number, since it uses less digits than its factorization.

49372720081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486263.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 49372720081 in words is "forty-nine billion, three hundred seventy-two million, seven hundred twenty thousand, eighty-one".