40403453715640 has 48 divisors (see below), whose sum is σ = 95032131024600. Its totient is φ = 15458712717888.

The previous prime is 40403453715629. The next prime is 40403453715641. The reversal of 40403453715640 is 4651735430404.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40403453715641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 954691830 + ... + 954734149.

Almost surely, 2^{40403453715640} is an apocalyptic number.

40403453715640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40403453715640 is an abundant number, since it is smaller than the sum of its proper divisors (54628677308960).

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

40403453715640 is a wasteful number, since it uses less digits than its factorization.

40403453715640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909426036 (or 1909426009 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 46.

The spelling of 40403453715640 in words is "forty trillion, four hundred three billion, four hundred fifty-three million, seven hundred fifteen thousand, six hundred forty".