40521434036 has 12 divisors (see below), whose sum is σ = 70995648612. Its totient is φ = 20236963008.

The previous prime is 40521434003. The next prime is 40521434069. The reversal of 40521434036 is 63043412504.

It is an interprime number because it is at equal distance from previous prime (40521434003) and next prime (40521434069).

It can be written as a sum of positive squares in 2 ways, for example, as 23424302500 + 17097131536 = 153050^2 + 130756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40521433993 and 40521434011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5934665 + ... + 5941488.

It is an arithmetic number, because the mean of its divisors is an integer number (5916304051).

Almost surely, 2^40521434036 is an apocalyptic number.

It is an amenable number.

40521434036 is a deficient number, since it is larger than the sum of its proper divisors (30474214576).

40521434036 is a wasteful number, since it uses less digits than its factorization.

40521434036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11877010 (or 11877008 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The spelling of 40521434036 in words is "forty billion, five hundred twenty-one million, four hundred thirty-four thousand, thirty-six".