49396811520 has 288 divisors, whose sum is σ = 185175019008. Its totient is φ = 10985324544.

The previous prime is 49396811501. The next prime is 49396811533. The reversal of 49396811520 is 2511869394.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 49396811520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 969727 + ... + 1019393.

It is an arithmetic number, because the mean of its divisors is an integer number (642968816).

Almost surely, 2^49396811520 is an apocalyptic number.

49396811520 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 49396811520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92587509504).

49396811520 is an abundant number, since it is smaller than the sum of its proper divisors (135778207488).

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

49396811520 is a wasteful number, since it uses less digits than its factorization.

49396811520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49735 (or 49721 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 49396811520 in words is "forty-nine billion, three hundred ninety-six million, eight hundred eleven thousand, five hundred twenty".