40197343680 has 168 divisors, whose sum is σ = 148897799232. Its totient is φ = 9894721536.

The previous prime is 40197343633. The next prime is 40197343763. The reversal of 40197343680 is 8634379104.

40197343680 is a `hidden beast` number, since 40 + 197 + 343 + 6 + 80 = 666.

40197343680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 499384 + ... + 574263.

It is an arithmetic number, because the mean of its divisors is an integer number (886296424).

Almost surely, 2^40197343680 is an apocalyptic number.

40197343680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40197343680 is an abundant number, since it is smaller than the sum of its proper divisors (108700455552).

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

40197343680 is a wasteful number, since it uses less digits than its factorization.

40197343680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073683 (or 1073670 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 40197343680 in words is "forty billion, one hundred ninety-seven million, three hundred forty-three thousand, six hundred eighty".