83390031472 has 20 divisors (see below), whose sum is σ = 176256203256. Its totient is φ = 37904559680.

The previous prime is 83390031463. The next prime is 83390031481. The reversal of 83390031472 is 27413009338.

It is an interprime number because it is at equal distance from previous prime (83390031463) and next prime (83390031481).

It is a super-3 number, since 3×83390031472³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236903323 + ... + 236903674.

Almost surely, 2^83390031472 is an apocalyptic number.

It is an amenable number.

83390031472 is an abundant number, since it is smaller than the sum of its proper divisors (92866171784).

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

83390031472 is a wasteful number, since it uses less digits than its factorization.

83390031472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473807016 (or 473807010 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 83390031472 in words is "eighty-three billion, three hundred ninety million, thirty-one thousand, four hundred seventy-two".