345464740644 has 96 divisors (see below), whose sum is σ = 888652622592. Its totient is φ = 104004096000.

The previous prime is 345464740639. The next prime is 345464740697. The reversal of 345464740644 is 446047464543.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 171649 + ... + 848759.

It is an arithmetic number, because the mean of its divisors is an integer number (9256798152).

Almost surely, 2^345464740644 is an apocalyptic number.

345464740644 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345464740644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444326311296).

345464740644 is an abundant number, since it is smaller than the sum of its proper divisors (543187881948).

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

345464740644 is a wasteful number, since it uses less digits than its factorization.

345464740644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677237 (or 677235 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 51.

The spelling of 345464740644 in words is "three hundred forty-five billion, four hundred sixty-four million, seven hundred forty thousand, six hundred forty-four".