346490515728 has 140 divisors (see below), whose sum is σ = 1150317549568. Its totient is φ = 98997266880.

The previous prime is 346490515717. The next prime is 346490515769. The reversal of 346490515728 is 827515094643.

It is a happy number.

346490515728 is a `hidden beast` number, since 3 + 4 + 64 + 9 + 0 + 5 + 1 + 572 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2040208 + ... + 2203503.

It is a 1-persistent number, because it is pandigital, but 2⋅346490515728 = 692981031456 is not.

Almost surely, 2^346490515728 is an apocalyptic number.

It is an amenable number.

346490515728 is an abundant number, since it is smaller than the sum of its proper divisors (803827033840).

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

346490515728 is an equidigital number, since it uses as much as digits as its factorization.

346490515728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243744 (or 4243723 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 346490515728 in words is "three hundred forty-six billion, four hundred ninety million, five hundred fifteen thousand, seven hundred twenty-eight".