245404734624 has 72 divisors (see below), whose sum is σ = 797565394080. Its totient is φ = 70115637888.

The previous prime is 245404734613. The next prime is 245404734647. The reversal of 245404734624 is 426437404542.

245404734624 is a `hidden beast` number, since 2 + 4 + 540 + 47 + 3 + 4 + 62 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 245404734624.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60862254 + ... + 60866285.

It is an arithmetic number, because the mean of its divisors is an integer number (11077297140).

Almost surely, 2^245404734624 is an apocalyptic number.

245404734624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

245404734624 is an abundant number, since it is smaller than the sum of its proper divisors (552160659456).

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

245404734624 is a wasteful number, since it uses less digits than its factorization.

245404734624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121728562 (or 121728551 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 45.

The spelling of 245404734624 in words is "two hundred forty-five billion, four hundred four million, seven hundred thirty-four thousand, six hundred twenty-four".