345446140776 has 128 divisors (see below), whose sum is σ = 972828057600. Its totient is φ = 101271456000.

The previous prime is 345446140763. The next prime is 345446140777. The reversal of 345446140776 is 677041644543.

It is not an unprimeable number, because it can be changed into a prime (345446140777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40252806 + ... + 40261386.

It is an arithmetic number, because the mean of its divisors is an integer number (7600219200).

Almost surely, 2^345446140776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345446140776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486414028800).

345446140776 is an abundant number, since it is smaller than the sum of its proper divisors (627381916824).

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

345446140776 is a wasteful number, since it uses less digits than its factorization.

345446140776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13551 (or 13547 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 51.

The spelling of 345446140776 in words is "three hundred forty-five billion, four hundred forty-six million, one hundred forty thousand, seven hundred seventy-six".