611945397264 has 40 divisors (see below), whose sum is σ = 1604453860960. Its totient is φ = 200937293568.

The previous prime is 611945397233. The next prime is 611945397269. The reversal of 611945397264 is 462793549116.

It is not an unprimeable number, because it can be changed into a prime (611945397269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95137549 + ... + 95143980.

It is an arithmetic number, because the mean of its divisors is an integer number (40111346524).

Almost surely, 2^611945397264 is an apocalyptic number.

It is an amenable number.

611945397264 is an abundant number, since it is smaller than the sum of its proper divisors (992508463696).

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

611945397264 is a wasteful number, since it uses less digits than its factorization.

611945397264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190281607 (or 190281601 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The spelling of 611945397264 in words is "six hundred eleven billion, nine hundred forty-five million, three hundred ninety-seven thousand, two hundred sixty-four".