49008557820 has 96 divisors (see below), whose sum is σ = 149105940480. Its totient is φ = 11981710080.

The previous prime is 49008557813. The next prime is 49008557827. The reversal of 49008557820 is 2875580094.

It is an interprime number because it is at equal distance from previous prime (49008557813) and next prime (49008557827).

It is a self number, because there is not a number n which added to its sum of digits gives 49008557820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49008557827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658047 + ... + 728726.

It is an arithmetic number, because the mean of its divisors is an integer number (1553186880).

Almost surely, 2^49008557820 is an apocalyptic number.

It is an amenable number.

49008557820 is an abundant number, since it is smaller than the sum of its proper divisors (100097382660).

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

49008557820 is a wasteful number, since it uses less digits than its factorization.

49008557820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386835 (or 1386833 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 49008557820 in words is "forty-nine billion, eight million, five hundred fifty-seven thousand, eight hundred twenty".