40137445617778 has 8 divisors (see below), whose sum is σ = 60508711987200. Its totient is φ = 19967874955380.

The previous prime is 40137445617749. The next prime is 40137445617827. The reversal of 40137445617778 is 87771654473104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40137445617778² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50423926258 + ... + 50423927053.

It is an arithmetic number, because the mean of its divisors is an integer number (7563588998400).

Almost surely, 2^{40137445617778} is an apocalyptic number.

40137445617778 is a deficient number, since it is larger than the sum of its proper divisors (20371266369422).

40137445617778 is a wasteful number, since it uses less digits than its factorization.

40137445617778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100847853512.

The product of its (nonzero) digits is 110638080, while the sum is 64.

The spelling of 40137445617778 in words is "forty trillion, one hundred thirty-seven billion, four hundred forty-five million, six hundred seventeen thousand, seven hundred seventy-eight".