1427616616 has 32 divisors (see below), whose sum is σ = 2873084040. Its totient is φ = 662611968.

The previous prime is 1427616613. The next prime is 1427616629. The reversal of 1427616616 is 6166167241.

It can be written as a sum of positive squares in 4 ways, for example, as 1056900100 + 370716516 = 32510^2 + 19254^2 .

It is not an unprimeable number, because it can be changed into a prime (1427616613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61971 + ... + 81826.

Almost surely, 2^1427616616 is an apocalyptic number.

It is an amenable number.

1427616616 is an abundant number, since it is smaller than the sum of its proper divisors (1445467424).

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

1427616616 is a wasteful number, since it uses less digits than its factorization.

1427616616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143893 (or 143889 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 1427616616 is about 37783.8142066150. The cubic root of 1427616616 is about 1125.9969082065.

The spelling of 1427616616 in words is "one billion, four hundred twenty-seven million, six hundred sixteen thousand, six hundred sixteen".