36499720400 has 240 divisors, whose sum is σ = 103665115008. Its totient is φ = 12175104000.

The previous prime is 36499720339. The next prime is 36499720451. The reversal of 36499720400 is 402799463.

It is a Cunningham number, because it is equal to 191049²-1.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9550490 + ... + 9554310.

Almost surely, 2^36499720400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36499720400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51832557504).

36499720400 is an abundant number, since it is smaller than the sum of its proper divisors (67165394608).

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

36499720400 is a wasteful number, since it uses less digits than its factorization.

36499720400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030 (or 4019 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 36499720400 in words is "thirty-six billion, four hundred ninety-nine million, seven hundred twenty thousand, four hundred".