49394557408 has 48 divisors (see below), whose sum is σ = 113405896800. Its totient is φ = 21169091328.

The previous prime is 49394557397. The next prime is 49394557409. The reversal of 49394557408 is 80475549394.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49394557409) 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, 2239141 + ... + 2261092.

It is an arithmetic number, because the mean of its divisors is an integer number (2362622850).

Almost surely, 2^49394557408 is an apocalyptic number.

It is an amenable number.

49394557408 is an abundant number, since it is smaller than the sum of its proper divisors (64011339392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49394557408 is an equidigital number, since it uses as much as digits as its factorization.

49394557408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500264 (or 4500242 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 49394557408 in words is "forty-nine billion, three hundred ninety-four million, five hundred fifty-seven thousand, four hundred eight".