31872873046 has 32 divisors (see below), whose sum is σ = 57584736000. Its totient is φ = 12925166112.

The previous prime is 31872873017. The next prime is 31872873049. The reversal of 31872873046 is 64037827813.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31872873049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148245 + ... + 292783.

It is an arithmetic number, because the mean of its divisors is an integer number (1799523000).

Almost surely, 2^31872873046 is an apocalyptic number.

31872873046 is a deficient number, since it is larger than the sum of its proper divisors (25711862954).

31872873046 is a wasteful number, since it uses less digits than its factorization.

31872873046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145396.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 31872873046 in words is "thirty-one billion, eight hundred seventy-two million, eight hundred seventy-three thousand, forty-six".