287992061396 has 24 divisors (see below), whose sum is σ = 554302237440. Its totient is φ = 130091339232.

The previous prime is 287992061339. The next prime is 287992061411. The reversal of 287992061396 is 693160299782.

It is a happy number.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

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, 58915736 + ... + 58920623.

It is an arithmetic number, because the mean of its divisors is an integer number (23095926560).

Almost surely, 2^287992061396 is an apocalyptic number.

287992061396 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

287992061396 is a deficient number, since it is larger than the sum of its proper divisors (266310176044).

287992061396 is a wasteful number, since it uses less digits than its factorization.

287992061396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117836423 (or 117836421 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 287992061396 in words is "two hundred eighty-seven billion, nine hundred ninety-two million, sixty-one thousand, three hundred ninety-six".