53344278990 has 192 divisors, whose sum is σ = 145682971200. Its totient is φ = 13528000512.

The previous prime is 53344278959. The next prime is 53344279003. The reversal of 53344278990 is 9987244335.

53344278990 is a `hidden beast` number, since 5 + 33 + 442 + 7 + 89 + 90 = 666.

53344278990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53344278990² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 72184041 + ... + 72184779.

It is an arithmetic number, because the mean of its divisors is an integer number (758765475).

Almost surely, 2^53344278990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53344278990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72841485600).

53344278990 is an abundant number, since it is smaller than the sum of its proper divisors (92338692210).

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

53344278990 is a wasteful number, since it uses less digits than its factorization.

53344278990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 53344278990 in words is "fifty-three billion, three hundred forty-four million, two hundred seventy-eight thousand, nine hundred ninety".