50861777440 has 48 divisors (see below), whose sum is σ = 120207144960. Its totient is φ = 20336889600.

The previous prime is 50861777431. The next prime is 50861777441. The reversal of 50861777440 is 4477716805.

It is not an unprimeable number, because it can be changed into a prime (50861777441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365665 + ... + 485215.

It is an arithmetic number, because the mean of its divisors is an integer number (2504315520).

Almost surely, 2^50861777440 is an apocalyptic number.

It is an amenable number.

50861777440 is an abundant number, since it is smaller than the sum of its proper divisors (69345367520).

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

50861777440 is a wasteful number, since it uses less digits than its factorization.

50861777440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122225 (or 122217 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 50861777440 in words is "fifty billion, eight hundred sixty-one million, seven hundred seventy-seven thousand, four hundred forty".