40202255446487 has 4 divisors (see below), whose sum is σ = 40202397378816. Its totient is φ = 40202113514160.

The previous prime is 40202255446333. The next prime is 40202255446523. The reversal of 40202255446487 is 78464455220204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40202255446487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40202255046487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70540439 + ... + 71108072.

It is an arithmetic number, because the mean of its divisors is an integer number (10050599344704).

Almost surely, 2^{40202255446487} is an apocalyptic number.

40202255446487 is a deficient number, since it is larger than the sum of its proper divisors (141932329).

40202255446487 is a wasteful number, since it uses less digits than its factorization.

40202255446487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141932328.

The product of its (nonzero) digits is 17203200, while the sum is 53.

The spelling of 40202255446487 in words is "forty trillion, two hundred two billion, two hundred fifty-five million, four hundred forty-six thousand, four hundred eighty-seven".