40376391401780 has 24 divisors (see below), whose sum is σ = 96903339364608. Its totient is φ = 13843334194848.

The previous prime is 40376391401699. The next prime is 40376391401791. The reversal of 40376391401780 is 8710419367304.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144201397724 + ... + 144201398003.

It is an arithmetic number, because the mean of its divisors is an integer number (4037639140192).

Almost surely, 2^{40376391401780} is an apocalyptic number.

It is an amenable number.

40376391401780 is an abundant number, since it is smaller than the sum of its proper divisors (56526947962828).

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

40376391401780 is a wasteful number, since it uses less digits than its factorization.

40376391401780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288402795743 (or 288402795741 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 40376391401780 in words is "forty trillion, three hundred seventy-six billion, three hundred ninety-one million, four hundred one thousand, seven hundred eighty".