351690231980 has 24 divisors (see below), whose sum is σ = 749572616688. Its totient is φ = 138576449088.

The previous prime is 351690231967. The next prime is 351690232001. The reversal of 351690231980 is 89132096153.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131226359 + ... + 131229038.

It is an arithmetic number, because the mean of its divisors is an integer number (31232192362).

Almost surely, 2^351690231980 is an apocalyptic number.

It is an amenable number.

351690231980 is an abundant number, since it is smaller than the sum of its proper divisors (397882384708).

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

351690231980 is a wasteful number, since it uses less digits than its factorization.

351690231980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262455473 (or 262455471 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 351690231980 in words is "three hundred fifty-one billion, six hundred ninety million, two hundred thirty-one thousand, nine hundred eighty".