245134885504 has 64 divisors (see below), whose sum is σ = 492932119680. Its totient is φ = 121423795200.

The previous prime is 245134885493. The next prime is 245134885519. The reversal of 245134885504 is 405588431542.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×245134885504² (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 7 ways as a sum of consecutive naturals, for example, 6073069 + ... + 6113299.

It is an arithmetic number, because the mean of its divisors is an integer number (7702064370).

Almost surely, 2^245134885504 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 245134885504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246466059840).

245134885504 is an abundant number, since it is smaller than the sum of its proper divisors (247797234176).

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

245134885504 is a wasteful number, since it uses less digits than its factorization.

245134885504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40689 (or 40677 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 49.

The spelling of 245134885504 in words is "two hundred forty-five billion, one hundred thirty-four million, eight hundred eighty-five thousand, five hundred four".