245539897855488 has 800 divisors, whose sum is σ = 782435919833568. Its totient is φ = 76393414656000.

The previous prime is 245539897855463. The next prime is 245539897855513. The reversal of 245539897855488 is 884558798935542.

245539897855488 is a `hidden beast` number, since 2 + 4 + 5 + 5 + 3 + 9 + 8 + 9 + 78 + 55 + 488 = 666.

It is an interprime number because it is at equal distance from previous prime (245539897855463) and next prime (245539897855513).

It is a junction number, because it is equal to n+sod(n) for n = 245539897855398 and 245539897855407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 66523947723 + ... + 66523951413.

Almost surely, 2^{245539897855488} 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 245539897855488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391217959916784).

245539897855488 is an abundant number, since it is smaller than the sum of its proper divisors (536896021978080).

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

245539897855488 is a wasteful number, since it uses less digits than its factorization.

245539897855488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496 (or 4471 counting only the distinct ones).

The product of its digits is 139345920000, while the sum is 90.

The spelling of 245539897855488 in words is "two hundred forty-five trillion, five hundred thirty-nine billion, eight hundred ninety-seven million, eight hundred fifty-five thousand, four hundred eighty-eight".