40159399770 has 96 divisors (see below), whose sum is σ = 120768665472. Its totient is φ = 9068685696.

The previous prime is 40159399769. The next prime is 40159399793. The reversal of 40159399770 is 7799395104.

It is a happy number.

40159399770 is a `hidden beast` number, since 40 + 1 + 593 + 9 + 9 + 7 + 7 + 0 = 666.

It is a super-2 number, since 2×40159399770² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 331717 + ... + 436296.

It is an arithmetic number, because the mean of its divisors is an integer number (1258006932).

Almost surely, 2^40159399770 is an apocalyptic number.

40159399770 is an abundant number, since it is smaller than the sum of its proper divisors (80609265702).

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

40159399770 is a wasteful number, since it uses less digits than its factorization.

40159399770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768116 (or 768113 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 54.

The spelling of 40159399770 in words is "forty billion, one hundred fifty-nine million, three hundred ninety-nine thousand, seven hundred seventy".