40591972754 has 4 divisors (see below), whose sum is σ = 60887959134. Its totient is φ = 20295986376.

The previous prime is 40591972753. The next prime is 40591972777. The reversal of 40591972754 is 45727919504.

40591972754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27930097129 + 12661875625 = 167123^2 + 112525^2 .

It is a super-2 number, since 2×40591972754² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40591972696 and 40591972705.

It is not an unprimeable number, because it can be changed into a prime (40591972753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10147993187 + ... + 10147993190.

Almost surely, 2^40591972754 is an apocalyptic number.

40591972754 is a deficient number, since it is larger than the sum of its proper divisors (20295986380).

40591972754 is a wasteful number, since it uses less digits than its factorization.

40591972754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20295986379.

The product of its (nonzero) digits is 3175200, while the sum is 53.

The spelling of 40591972754 in words is "forty billion, five hundred ninety-one million, nine hundred seventy-two thousand, seven hundred fifty-four".