3661289621002 has 48 divisors (see below), whose sum is σ = 6290754634080. Its totient is φ = 1588401015552.

The previous prime is 3661289620853. The next prime is 3661289621029. The reversal of 3661289621002 is 2001269821663.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5603949 + ... + 6223087.

It is an arithmetic number, because the mean of its divisors is an integer number (131057388210).

Almost surely, 2^{3661289621002} is an apocalyptic number.

3661289621002 is a deficient number, since it is larger than the sum of its proper divisors (2629465013078).

3661289621002 is a wasteful number, since it uses less digits than its factorization.

3661289621002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619975 (or 619958 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 3661289621002 in words is "three trillion, six hundred sixty-one billion, two hundred eighty-nine million, six hundred twenty-one thousand, two".