1690238676852 has 96 divisors (see below), whose sum is σ = 4988319759360. Its totient is φ = 489924246240.

The previous prime is 1690238676839. The next prime is 1690238676869. The reversal of 1690238676852 is 2586768320961.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1690238676852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30902238 + ... + 30956885.

It is an arithmetic number, because the mean of its divisors is an integer number (51961664160).

Almost surely, 2^{1690238676852} is an apocalyptic number.

1690238676852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1690238676852 is an abundant number, since it is smaller than the sum of its proper divisors (3298081082508).

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

1690238676852 is a wasteful number, since it uses less digits than its factorization.

1690238676852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61859170 (or 61859162 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 1690238676852 in words is "one trillion, six hundred ninety billion, two hundred thirty-eight million, six hundred seventy-six thousand, eight hundred fifty-two".