40640050526 has 4 divisors (see below), whose sum is σ = 60960075792. Its totient is φ = 20320025262.

The previous prime is 40640050511. The next prime is 40640050547. The reversal of 40640050526 is 62505004604.

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

It is a super-2 number, since 2×40640050526² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40640050492 and 40640050501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160012630 + ... + 10160012633.

It is an arithmetic number, because the mean of its divisors is an integer number (15240018948).

Almost surely, 2^40640050526 is an apocalyptic number.

40640050526 is a deficient number, since it is larger than the sum of its proper divisors (20320025266).

40640050526 is a wasteful number, since it uses less digits than its factorization.

40640050526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20320025265.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 40640050526 in words is "forty billion, six hundred forty million, fifty thousand, five hundred twenty-six".