40253645031146 has 4 divisors (see below), whose sum is σ = 60380467546722. Its totient is φ = 20126822515572.

The previous prime is 40253645031137. The next prime is 40253645031167. The reversal of 40253645031146 is 64113054635204.

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., 26638615110121 + 13615029921025 = 5161261^2 + 3689855^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40253645031097 and 40253645031106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10063411257785 + ... + 10063411257788.

Almost surely, 2^{40253645031146} is an apocalyptic number.

40253645031146 is a deficient number, since it is larger than the sum of its proper divisors (20126822515576).

40253645031146 is a wasteful number, since it uses less digits than its factorization.

40253645031146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20126822515575.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 40253645031146 in words is "forty trillion, two hundred fifty-three billion, six hundred forty-five million, thirty-one thousand, one hundred forty-six".