3651534994 has 8 divisors (see below), whose sum is σ = 5479994880. Its totient is φ = 1824870036.

The previous prime is 3651534967. The next prime is 3651535021. The reversal of 3651534994 is 4994351563.

It is an interprime number because it is at equal distance from previous prime (3651534967) and next prime (3651535021).

It is a sphenic number, since it is the product of 3 distinct primes.

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, 443634 + ... + 451789.

It is an arithmetic number, because the mean of its divisors is an integer number (684999360).

Almost surely, 2^3651534994 is an apocalyptic number.

3651534994 is a deficient number, since it is larger than the sum of its proper divisors (1828459886).

3651534994 is a wasteful number, since it uses less digits than its factorization.

3651534994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897464.

The product of its digits is 1749600, while the sum is 49.

The square root of 3651534994 is about 60427.9322333637. The cubic root of 3651534994 is about 1539.8975298660.

The spelling of 3651534994 in words is "three billion, six hundred fifty-one million, five hundred thirty-four thousand, nine hundred ninety-four".