3620689680 has 40 divisors (see below), whose sum is σ = 11224138752. Its totient is φ = 965517184.

The previous prime is 3620689663. The next prime is 3620689691. The reversal of 3620689680 is 869860263.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7542864 + ... + 7543343.

Almost surely, 2^3620689680 is an apocalyptic number.

3620689680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3620689680 is an abundant number, since it is smaller than the sum of its proper divisors (7603449072).

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

3620689680 is a wasteful number, since it uses less digits than its factorization.

3620689680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15086223 (or 15086217 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 3620689680 is about 60172.1669877361. The cubic root of 3620689680 is about 1535.5493130324.

The spelling of 3620689680 in words is "three billion, six hundred twenty million, six hundred eighty-nine thousand, six hundred eighty".