618977490048 has 640 divisors, whose sum is σ = 1955494126080. Its totient is φ = 194088960000.

The previous prime is 618977490037. The next prime is 618977490127. The reversal of 618977490048 is 840094779816.

618977490048 is a `hidden beast` number, since 6 + 18 + 97 + 7 + 490 + 0 + 48 = 666.

It is a super-2 number, since 2×618977490048² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2568371208 + ... + 2568371448.

It is an arithmetic number, because the mean of its divisors is an integer number (3055459572).

Almost surely, 2^618977490048 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 618977490048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (977747063040).

618977490048 is an abundant number, since it is smaller than the sum of its proper divisors (1336516636032).

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

618977490048 is a wasteful number, since it uses less digits than its factorization.

618977490048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 618977490048 in words is "six hundred eighteen billion, nine hundred seventy-seven million, four hundred ninety thousand, forty-eight".