2790287537640 has 32 divisors (see below), whose sum is σ = 8370862613280. Its totient is φ = 744076676672.

The previous prime is 2790287537621. The next prime is 2790287537657. The reversal of 2790287537640 is 467357820972.

It is a happy number.

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

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, 11626197954 + ... + 11626198193.

It is an arithmetic number, because the mean of its divisors is an integer number (261589456665).

Almost surely, 2^{2790287537640} is an apocalyptic number.

2790287537640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2790287537640 is an abundant number, since it is smaller than the sum of its proper divisors (5580575075640).

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

2790287537640 is a wasteful number, since it uses less digits than its factorization.

2790287537640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23252396161 (or 23252396157 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 60.

The spelling of 2790287537640 in words is "two trillion, seven hundred ninety billion, two hundred eighty-seven million, five hundred thirty-seven thousand, six hundred forty".