351685340040 has 64 divisors (see below), whose sum is σ = 1062646401600. Its totient is φ = 93108056832.

The previous prime is 351685340029. The next prime is 351685340089. The reversal of 351685340040 is 40043586153.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10525447 + ... + 10558806.

It is an arithmetic number, because the mean of its divisors is an integer number (16603850025).

Almost surely, 2^351685340040 is an apocalyptic number.

351685340040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

351685340040 is an abundant number, since it is smaller than the sum of its proper divisors (710961061560).

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

351685340040 is a wasteful number, since it uses less digits than its factorization.

351685340040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21084406 (or 21084402 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 351685340040 in words is "three hundred fifty-one billion, six hundred eighty-five million, three hundred forty thousand, forty".