645511462430700 has 72 divisors (see below), whose sum is σ = 1873763479225792. Its totient is φ = 171575685103680.

The previous prime is 645511462430677. The next prime is 645511462430701. The reversal of 645511462430700 is 7034264115546.

It is a self number, because there is not a number n which added to its sum of digits gives 645511462430700.

It is not an unprimeable number, because it can be changed into a prime (645511462430701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3504313234 + ... + 3504497433.

Almost surely, 2^{645511462430700} is an apocalyptic number.

645511462430700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

645511462430700 is an abundant number, since it is smaller than the sum of its proper divisors (1228252016795092).

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

645511462430700 is a wasteful number, since it uses less digits than its factorization.

645511462430700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008810991 (or 7008810984 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 645511462430700 in words is "six hundred forty-five trillion, five hundred eleven billion, four hundred sixty-two million, four hundred thirty thousand, seven hundred".