245949472648 has 32 divisors (see below), whose sum is σ = 511325665920. Its totient is φ = 109962504000.

The previous prime is 245949472633. The next prime is 245949472649. The reversal of 245949472648 is 846274949542.

It is a super-2 number, since 2×245949472648² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245949472648.

It is not an unprimeable number, because it can be changed into a prime (245949472649) 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, 22903488 + ... + 22914223.

It is an arithmetic number, because the mean of its divisors is an integer number (15978927060).

Almost surely, 2^245949472648 is an apocalyptic number.

It is an amenable number.

245949472648 is an abundant number, since it is smaller than the sum of its proper divisors (265376193272).

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

245949472648 is a wasteful number, since it uses less digits than its factorization.

245949472648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45817789 (or 45817785 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 64.

The spelling of 245949472648 in words is "two hundred forty-five billion, nine hundred forty-nine million, four hundred seventy-two thousand, six hundred forty-eight".