747975400171 has 4 divisors (see below), whose sum is σ = 747981502000. Its totient is φ = 747969298344.

The previous prime is 747975400169. The next prime is 747975400187. The reversal of 747975400171 is 171004579747.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 747975400171 - 2¹ = 747975400169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747973400171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2863191 + ... + 3113488.

It is an arithmetic number, because the mean of its divisors is an integer number (186995375500).

Almost surely, 2^747975400171 is an apocalyptic number.

747975400171 is a deficient number, since it is larger than the sum of its proper divisors (6101829).

747975400171 is a wasteful number, since it uses less digits than its factorization.

747975400171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101828.

The product of its (nonzero) digits is 1728720, while the sum is 52.

The spelling of 747975400171 in words is "seven hundred forty-seven billion, nine hundred seventy-five million, four hundred thousand, one hundred seventy-one".