40178751240 has 64 divisors (see below), whose sum is σ = 121485404160. Its totient is φ = 10629964800.

The previous prime is 40178751229. The next prime is 40178751253. The reversal of 40178751240 is 4215787104.

It is a super-2 number, since 2×40178751240² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1302961 + ... + 1333440.

It is an arithmetic number, because the mean of its divisors is an integer number (1898209440).

Almost surely, 2^40178751240 is an apocalyptic number.

40178751240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40178751240 is an abundant number, since it is smaller than the sum of its proper divisors (81306652920).

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

40178751240 is a wasteful number, since it uses less digits than its factorization.

40178751240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636542 (or 2636538 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The spelling of 40178751240 in words is "forty billion, one hundred seventy-eight million, seven hundred fifty-one thousand, two hundred forty".