40205400253492 has 6 divisors (see below), whose sum is σ = 70359450443618. Its totient is φ = 20102700126744.

The previous prime is 40205400253439. The next prime is 40205400253517. The reversal of 40205400253492 is 29435200450204.

It can be written as a sum of positive squares in only one way, i.e., 30462849107856 + 9742551145636 = 5519316^2 + 3121306^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025675031683 + ... + 5025675031690.

Almost surely, 2^{40205400253492} is an apocalyptic number.

It is an amenable number.

40205400253492 is a deficient number, since it is larger than the sum of its proper divisors (30154050190126).

40205400253492 is a wasteful number, since it uses less digits than its factorization.

40205400253492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10051350063377 (or 10051350063375 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 40205400253492 in words is "forty trillion, two hundred five billion, four hundred million, two hundred fifty-three thousand, four hundred ninety-two".