351920499490 has 96 divisors (see below), whose sum is σ = 746429281920. Its totient is φ = 119104521984.

The previous prime is 351920499449. The next prime is 351920499521. The reversal of 351920499490 is 94994029153.

It is a super-2 number, since 2×351920499490² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12001627 + ... + 12030913.

It is an arithmetic number, because the mean of its divisors is an integer number (7775305020).

Almost surely, 2^351920499490 is an apocalyptic number.

351920499490 is an abundant number, since it is smaller than the sum of its proper divisors (394508782430).

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

351920499490 is a wasteful number, since it uses less digits than its factorization.

351920499490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29624 (or 29617 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 55.

The spelling of 351920499490 in words is "three hundred fifty-one billion, nine hundred twenty million, four hundred ninety-nine thousand, four hundred ninety".