61826113536 has 336 divisors, whose sum is σ = 192025536192. Its totient is φ = 17618698240.

The previous prime is 61826113513. The next prime is 61826113541. The reversal of 61826113536 is 63531162816.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50552221 + ... + 50553443.

It is an arithmetic number, because the mean of its divisors is an integer number (571504572).

Almost surely, 2^61826113536 is an apocalyptic number.

61826113536 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61826113536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96012768096).

61826113536 is an abundant number, since it is smaller than the sum of its proper divisors (130199422656).

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

61826113536 is a wasteful number, since it uses less digits than its factorization.

61826113536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291 (or 1256 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The spelling of 61826113536 in words is "sixty-one billion, eight hundred twenty-six million, one hundred thirteen thousand, five hundred thirty-six".