369909644640 has 48 divisors (see below), whose sum is σ = 1165215382128. Its totient is φ = 98642571776.

The previous prime is 369909644639. The next prime is 369909644641. The reversal of 369909644640 is 46446909963.

It is an interprime number because it is at equal distance from previous prime (369909644639) and next prime (369909644641).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (369909644641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385322067 + ... + 385323026.

It is an arithmetic number, because the mean of its divisors is an integer number (24275320461).

Almost surely, 2^369909644640 is an apocalyptic number.

369909644640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

369909644640 is an abundant number, since it is smaller than the sum of its proper divisors (795305737488).

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

369909644640 is a wasteful number, since it uses less digits than its factorization.

369909644640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770645111 (or 770645103 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 60.

The spelling of 369909644640 in words is "three hundred sixty-nine billion, nine hundred nine million, six hundred forty-four thousand, six hundred forty".