290688083877 has 4 divisors (see below), whose sum is σ = 387584111840. Its totient is φ = 193792055916.

The previous prime is 290688083857. The next prime is 290688083909. The reversal of 290688083877 is 778380886092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 290688083877 - 2²³ = 290679695269 is a prime.

It is a super-2 number, since 2×290688083877² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290688083857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48448013977 + ... + 48448013982.

It is an arithmetic number, because the mean of its divisors is an integer number (96896027960).

Almost surely, 2^290688083877 is an apocalyptic number.

It is an amenable number.

290688083877 is a deficient number, since it is larger than the sum of its proper divisors (96896027963).

290688083877 is an equidigital number, since it uses as much as digits as its factorization.

290688083877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96896027962.

The product of its (nonzero) digits is 65028096, while the sum is 66.

The spelling of 290688083877 in words is "two hundred ninety billion, six hundred eighty-eight million, eighty-three thousand, eight hundred seventy-seven".