347474072538 has 16 divisors (see below), whose sum is σ = 772164605760. Its totient is φ = 115824690828.

The previous prime is 347474072537. The next prime is 347474072551. The reversal of 347474072538 is 835270474743.

347474072538 is a `hidden beast` number, since 3 + 474 + 74 + 0 + 72 + 5 + 38 = 666.

It is a super-2 number, since 2×347474072538² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 6434705047 = 347474072538 / (3 + 4 + 7 + 4 + 7 + 4 + 0 + 7 + 2 + 5 + 3 + 8).

It is not an unprimeable number, because it can be changed into a prime (347474072537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3217352470 + ... + 3217352577.

It is an arithmetic number, because the mean of its divisors is an integer number (48260287860).

Almost surely, 2^347474072538 is an apocalyptic number.

347474072538 is an abundant number, since it is smaller than the sum of its proper divisors (424690533222).

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

347474072538 is a wasteful number, since it uses less digits than its factorization.

347474072538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434705058 (or 6434705052 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 54.

The spelling of 347474072538 in words is "three hundred forty-seven billion, four hundred seventy-four million, seventy-two thousand, five hundred thirty-eight".