245313272540 has 48 divisors (see below), whose sum is σ = 589031460864. Its totient is φ = 84067464000.

The previous prime is 245313272537. The next prime is 245313272593. The reversal of 245313272540 is 45272313542.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 245313272494 and 245313272503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119486 + ... + 710565.

It is an arithmetic number, because the mean of its divisors is an integer number (12271488768).

Almost surely, 2^245313272540 is an apocalyptic number.

245313272540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245313272540 is an abundant number, since it is smaller than the sum of its proper divisors (343718188324).

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

245313272540 is a wasteful number, since it uses less digits than its factorization.

245313272540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832178 (or 832176 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 245313272540 in words is "two hundred forty-five billion, three hundred thirteen million, two hundred seventy-two thousand, five hundred forty".