40626778500 has 1536 divisors, whose sum is σ = 184168857600. Its totient is φ = 7527168000.

The previous prime is 40626778459. The next prime is 40626778537. The reversal of 40626778500 is 587762604.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 511 ways as a sum of consecutive naturals, for example, 2138251491 + ... + 2138251509.

It is an arithmetic number, because the mean of its divisors is an integer number (119901600).

Almost surely, 2^40626778500 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 40626778500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92084428800).

40626778500 is an abundant number, since it is smaller than the sum of its proper divisors (143542079100).

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

40626778500 is a wasteful number, since it uses less digits than its factorization.

40626778500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 40626778500 in words is "forty billion, six hundred twenty-six million, seven hundred seventy-eight thousand, five hundred".