457774496550 has 144 divisors (see below), whose sum is σ = 1414003997952. Its totient is φ = 104007499200.

The previous prime is 457774496539. The next prime is 457774496551. The reversal of 457774496550 is 55694477754.

457774496550 is a `hidden beast` number, since 4 + 5 + 7 + 7 + 74 + 4 + 9 + 6 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457774496551) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 90945 + ... + 961155.

It is an arithmetic number, because the mean of its divisors is an integer number (9819472208).

Almost surely, 2^457774496550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 457774496550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707001998976).

457774496550 is an abundant number, since it is smaller than the sum of its proper divisors (956229501402).

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

457774496550 is a wasteful number, since it uses less digits than its factorization.

457774496550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870403 (or 870395 counting only the distinct ones).

The product of its (nonzero) digits is 148176000, while the sum is 63.

The spelling of 457774496550 in words is "four hundred fifty-seven billion, seven hundred seventy-four million, four hundred ninety-six thousand, five hundred fifty".