1612881351 has 12 divisors (see below), whose sum is σ = 2330123328. Its totient is φ = 1075066944.

The previous prime is 1612881323. The next prime is 1612881359. The reversal of 1612881351 is 1531882161.

1612881351 is a `hidden beast` number, since 1 + 612 + 8 + 8 + 1 + 35 + 1 = 666.

It is not a de Polignac number, because 1612881351 - 2⁶ = 1612881287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612881359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56431 + ... + 80063.

It is an arithmetic number, because the mean of its divisors is an integer number (194176944).

Almost surely, 2^1612881351 is an apocalyptic number.

1612881351 is a deficient number, since it is larger than the sum of its proper divisors (717241977).

1612881351 is a wasteful number, since it uses less digits than its factorization.

1612881351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31222 (or 31219 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 1612881351 is about 40160.6941050575. The cubic root of 1612881351 is about 1172.7374843974.

It can be divided in two parts, 16128 and 81351, that added together give a palindrome (97479).

The spelling of 1612881351 in words is "one billion, six hundred twelve million, eight hundred eighty-one thousand, three hundred fifty-one".