1826638753380 has 96 divisors (see below), whose sum is σ = 6046804189440. Its totient is φ = 403120273920.

The previous prime is 1826638753363. The next prime is 1826638753391. The reversal of 1826638753380 is 833578366281.

It is a super-2 number, since 2×1826638753380² (a number of 25 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 74972991 + ... + 74997350.

It is an arithmetic number, because the mean of its divisors is an integer number (62987543640).

Almost surely, 2^{1826638753380} is an apocalyptic number.

1826638753380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1826638753380 is an abundant number, since it is smaller than the sum of its proper divisors (4220165436060).

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

1826638753380 is a wasteful number, since it uses less digits than its factorization.

1826638753380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149970389 (or 149970387 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 1826638753380 in words is "one trillion, eight hundred twenty-six billion, six hundred thirty-eight million, seven hundred fifty-three thousand, three hundred eighty".