40010657721754 has 4 divisors (see below), whose sum is σ = 60015986582634. Its totient is φ = 20005328860876.

The previous prime is 40010657721703. The next prime is 40010657721823. The reversal of 40010657721754 is 45712775601004.

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., 35624460516129 + 4386197205625 = 5968623^2 + 2094325^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40010657721698 and 40010657721707.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002664430437 + ... + 10002664430440.

Almost surely, 2^{40010657721754} is an apocalyptic number.

40010657721754 is a deficient number, since it is larger than the sum of its proper divisors (20005328860880).

40010657721754 is a wasteful number, since it uses less digits than its factorization.

40010657721754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20005328860879.

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 40010657721754 in words is "forty trillion, ten billion, six hundred fifty-seven million, seven hundred twenty-one thousand, seven hundred fifty-four".