40766578833820 has 48 divisors (see below), whose sum is σ = 98553948292800. Its totient is φ = 13875090015744.

The previous prime is 40766578833809. The next prime is 40766578833821. The reversal of 40766578833820 is 2833887566704.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40766578833821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1062717495 + ... + 1062755854.

It is an arithmetic number, because the mean of its divisors is an integer number (2053207256100).

Almost surely, 2^{40766578833820} is an apocalyptic number.

It is an amenable number.

40766578833820 is an abundant number, since it is smaller than the sum of its proper divisors (57787369458980).

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

40766578833820 is a wasteful number, since it uses less digits than its factorization.

40766578833820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125473502 (or 2125473500 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 67.

The spelling of 40766578833820 in words is "forty trillion, seven hundred sixty-six billion, five hundred seventy-eight million, eight hundred thirty-three thousand, eight hundred twenty".