361879899318640 has 40 divisors (see below), whose sum is σ = 841373087135760. Its totient is φ = 144751560377856.

The previous prime is 361879899318599. The next prime is 361879899318653. The reversal of 361879899318640 is 46813998978163.

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

It is a congruent number.

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, 23839551 + ... + 35945569.

It is an arithmetic number, because the mean of its divisors is an integer number (21034327178394).

Almost surely, 2^{361879899318640} is an apocalyptic number.

It is an amenable number.

361879899318640 is an abundant number, since it is smaller than the sum of its proper divisors (479493187817120).

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

361879899318640 is a wasteful number, since it uses less digits than its factorization.

361879899318640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12479689 (or 12479683 counting only the distinct ones).

The product of its (nonzero) digits is 3386105856, while the sum is 82.

The spelling of 361879899318640 in words is "three hundred sixty-one trillion, eight hundred seventy-nine billion, eight hundred ninety-nine million, three hundred eighteen thousand, six hundred forty".