3647033252868 has 72 divisors (see below), whose sum is σ = 9065135816352. Its totient is φ = 1140931064448.

The previous prime is 3647033252861. The next prime is 3647033252879. The reversal of 3647033252868 is 8682523307463.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (3647033252861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3470505 + ... + 4397552.

It is an arithmetic number, because the mean of its divisors is an integer number (125904664116).

Almost surely, 2^{3647033252868} is an apocalyptic number.

3647033252868 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3647033252868 is an abundant number, since it is smaller than the sum of its proper divisors (5418102563484).

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

3647033252868 is a wasteful number, since it uses less digits than its factorization.

3647033252868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7868209 (or 7868188 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 57.

The spelling of 3647033252868 in words is "three trillion, six hundred forty-seven billion, thirty-three million, two hundred fifty-two thousand, eight hundred sixty-eight".