347274725520 has 40 divisors (see below), whose sum is σ = 1076551649856. Its totient is φ = 92606593408.

The previous prime is 347274725491. The next prime is 347274725521. The reversal of 347274725520 is 25527472743.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 347274725520.

It is not an unprimeable number, because it can be changed into a prime (347274725521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723488772 + ... + 723489251.

Almost surely, 2^347274725520 is an apocalyptic number.

347274725520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

347274725520 is an abundant number, since it is smaller than the sum of its proper divisors (729276924336).

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

347274725520 is a wasteful number, since it uses less digits than its factorization.

347274725520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446978039 (or 1446978033 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 48.

The spelling of 347274725520 in words is "three hundred forty-seven billion, two hundred seventy-four million, seven hundred twenty-five thousand, five hundred twenty".