49640435621 has 8 divisors (see below), whose sum is σ = 56739842880. Its totient is φ = 42543007488.

The previous prime is 49640435617. The next prime is 49640435651. The reversal of 49640435621 is 12653404694.

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 49640435621 - 2² = 49640435617 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49640435651) 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, 440636 + ... + 541701.

It is an arithmetic number, because the mean of its divisors is an integer number (7092480360).

Almost surely, 2^49640435621 is an apocalyptic number.

It is an amenable number.

49640435621 is a deficient number, since it is larger than the sum of its proper divisors (7099407259).

49640435621 is an equidigital number, since it uses as much as digits as its factorization.

49640435621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989563.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 49640435621 in words is "forty-nine billion, six hundred forty million, four hundred thirty-five thousand, six hundred twenty-one".