47172170051031 has 32 divisors (see below), whose sum is σ = 63347677989120. Its totient is φ = 31223450018304.

The previous prime is 47172170051011. The next prime is 47172170051051. The reversal of 47172170051031 is 13015007127174.

It is an interprime number because it is at equal distance from previous prime (47172170051011) and next prime (47172170051051).

It is not a de Polignac number, because 47172170051031 - 2⁷ = 47172170050903 is a prime.

It is a super-2 number, since 2×47172170051031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47172170051011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229330476 + ... + 229536078.

It is an arithmetic number, because the mean of its divisors is an integer number (1979614937160).

Almost surely, 2^{47172170051031} is an apocalyptic number.

47172170051031 is a deficient number, since it is larger than the sum of its proper divisors (16175507938089).

47172170051031 is a wasteful number, since it uses less digits than its factorization.

47172170051031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206895.

The product of its (nonzero) digits is 41160, while the sum is 39.

The spelling of 47172170051031 in words is "forty-seven trillion, one hundred seventy-two billion, one hundred seventy million, fifty-one thousand, thirty-one".