1612649007 has 20 divisors (see below), whose sum is σ = 2460280416. Its totient is φ = 1052222400.

The previous prime is 1612648991. The next prime is 1612649029. The reversal of 1612649007 is 7009462161.

1612649007 is a `hidden beast` number, since 1 + 6 + 1 + 2 + 649 + 0 + 0 + 7 = 666.

It is not a de Polignac number, because 1612649007 - 2⁴ = 1612648991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612649707) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 207994 + ... + 215607.

Almost surely, 2^1612649007 is an apocalyptic number.

1612649007 is a deficient number, since it is larger than the sum of its proper divisors (847631409).

1612649007 is an equidigital number, since it uses as much as digits as its factorization.

1612649007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423660 (or 423651 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1612649007 is about 40157.8013217855. The cubic root of 1612649007 is about 1172.6811687023.

The spelling of 1612649007 in words is "one billion, six hundred twelve million, six hundred forty-nine thousand, seven".