345206972490 has 32 divisors (see below), whose sum is σ = 855222437376. Its totient is φ = 89085670080.

The previous prime is 345206972489. The next prime is 345206972507. The reversal of 345206972490 is 94279602543.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185594217 + ... + 185596076.

It is an arithmetic number, because the mean of its divisors is an integer number (26725701168).

Almost surely, 2^345206972490 is an apocalyptic number.

345206972490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

345206972490 is an abundant number, since it is smaller than the sum of its proper divisors (510015464886).

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

345206972490 is a wasteful number, since it uses less digits than its factorization.

345206972490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371190334.

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 345206972490 in words is "three hundred forty-five billion, two hundred six million, nine hundred seventy-two thousand, four hundred ninety".