40126601773642 has 8 divisors (see below), whose sum is σ = 63730485169956. Its totient is φ = 18883106716992.

The previous prime is 40126601773627. The next prime is 40126601773663. The reversal of 40126601773642 is 24637710662104.

It can be written as a sum of positive squares in 2 ways, for example, as 38946573636961 + 1180028136681 = 6240719^2 + 1086291^2 .

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

It is a super-2 number, since 2×40126601773642² (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, 590097084873 + ... + 590097084940.

Almost surely, 2^{40126601773642} is an apocalyptic number.

40126601773642 is a deficient number, since it is larger than the sum of its proper divisors (23603883396314).

40126601773642 is a wasteful number, since it uses less digits than its factorization.

40126601773642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180194169832.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 40126601773642 in words is "forty trillion, one hundred twenty-six billion, six hundred one million, seven hundred seventy-three thousand, six hundred forty-two".