50261397680 has 480 divisors, whose sum is σ = 142730864640. Its totient is φ = 16368168960.

The previous prime is 50261397677. The next prime is 50261397721. The reversal of 50261397680 is 8679316205.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 277687190 + ... + 277687370.

It is an arithmetic number, because the mean of its divisors is an integer number (297355968).

Almost surely, 2^50261397680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50261397680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71365432320).

50261397680 is an abundant number, since it is smaller than the sum of its proper divisors (92469466960).

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

50261397680 is a wasteful number, since it uses less digits than its factorization.

50261397680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 50261397680 in words is "fifty billion, two hundred sixty-one million, three hundred ninety-seven thousand, six hundred eighty".