40090851529 has 3 divisors (see below), whose sum is σ = 40091051757. Its totient is φ = 40090651302.

The previous prime is 40090851517. The next prime is 40090851547. The reversal of 40090851529 is 92515809004.

The square root of 40090851529 is 200227.

It is a perfect power (a square), and thus also a powerful number.

40090851529 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, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 40090851529 - 2²³ = 40082462921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40090851509) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 100114 + ... + 300340.

It is an arithmetic number, because the mean of its divisors is an integer number (13363683919).

Almost surely, 2^40090851529 is an apocalyptic number.

40090851529 is the 200227-th square number.

40090851529 is the 100114-th centered octagonal number.

It is an amenable number.

40090851529 is a deficient number, since it is larger than the sum of its proper divisors (200228).

40090851529 is an frugal number, since it uses more digits than its factorization.

40090851529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400454 (or 200227 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 40090851529 in words is "forty billion, ninety million, eight hundred fifty-one thousand, five hundred twenty-nine".