347475881820 has 96 divisors (see below), whose sum is σ = 976335171840. Its totient is φ = 92336527360.

The previous prime is 347475881777. The next prime is 347475881861. The reversal of 347475881820 is 28188574743.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38352451 + ... + 38361509.

It is an arithmetic number, because the mean of its divisors is an integer number (10170158040).

Almost surely, 2^347475881820 is an apocalyptic number.

347475881820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

347475881820 is an abundant number, since it is smaller than the sum of its proper divisors (628859290020).

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

347475881820 is a wasteful number, since it uses less digits than its factorization.

347475881820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11235 (or 11233 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 57.

The spelling of 347475881820 in words is "three hundred forty-seven billion, four hundred seventy-five million, eight hundred eighty-one thousand, eight hundred twenty".