247374705431 has 4 divisors (see below), whose sum is σ = 282713949072. Its totient is φ = 212035461792.

The previous prime is 247374705421. The next prime is 247374705449. The reversal of 247374705431 is 134507473742.

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

It is not a de Polignac number, because 247374705431 - 2¹⁰ = 247374704407 is a prime.

It is a super-2 number, since 2×247374705431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247374705401) 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, 17669621810 + ... + 17669621823.

It is an arithmetic number, because the mean of its divisors is an integer number (70678487268).

Almost surely, 2^247374705431 is an apocalyptic number.

247374705431 is a deficient number, since it is larger than the sum of its proper divisors (35339243641).

247374705431 is an equidigital number, since it uses as much as digits as its factorization.

247374705431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35339243640.

The product of its (nonzero) digits is 1975680, while the sum is 47.

The spelling of 247374705431 in words is "two hundred forty-seven billion, three hundred seventy-four million, seven hundred five thousand, four hundred thirty-one".