49022657840 has 80 divisors (see below), whose sum is σ = 122818680768. Its totient is φ = 18089837568.

The previous prime is 49022657839. The next prime is 49022657881. The reversal of 49022657840 is 4875622094.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1841102 + ... + 1867538.

Almost surely, 2^49022657840 is an apocalyptic number.

49022657840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49022657840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61409340384).

49022657840 is an abundant number, since it is smaller than the sum of its proper divisors (73796022928).

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

49022657840 is a wasteful number, since it uses less digits than its factorization.

49022657840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28246 (or 28240 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 49022657840 in words is "forty-nine billion, twenty-two million, six hundred fifty-seven thousand, eight hundred forty".