40021264275 has 48 divisors (see below), whose sum is σ = 68352672768. Its totient is φ = 20641104000.

The previous prime is 40021264273. The next prime is 40021264321. The reversal of 40021264275 is 57246212004.

It is not a de Polignac number, because 40021264275 - 2¹ = 40021264273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40021264273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3647097 + ... + 3658053.

It is an arithmetic number, because the mean of its divisors is an integer number (1424014016).

Almost surely, 2^40021264275 is an apocalyptic number.

40021264275 is a deficient number, since it is larger than the sum of its proper divisors (28331408493).

40021264275 is a wasteful number, since it uses less digits than its factorization.

40021264275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12572 (or 12567 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

Adding to 40021264275 its reverse (57246212004), we get a palindrome (97267476279).

The spelling of 40021264275 in words is "forty billion, twenty-one million, two hundred sixty-four thousand, two hundred seventy-five".