28353177690 has 64 divisors (see below), whose sum is σ = 71683228800. Its totient is φ = 7157493504.

The previous prime is 28353177659. The next prime is 28353177691. The reversal of 28353177690 is 9677135382.

It is a super-2 number, since 2×28353177690² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28353177691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 764496 + ... + 800724.

It is an arithmetic number, because the mean of its divisors is an integer number (1120050450).

Almost surely, 2^28353177690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28353177690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35841614400).

28353177690 is an abundant number, since it is smaller than the sum of its proper divisors (43330051110).

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

28353177690 is a wasteful number, since it uses less digits than its factorization.

28353177690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37631.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 28353177690 in words is "twenty-eight billion, three hundred fifty-three million, one hundred seventy-seven thousand, six hundred ninety".