40803254641 has 2 divisors, whose sum is σ = 40803254642. Its totient is φ = 40803254640.

The previous prime is 40803254621. The next prime is 40803254689. The reversal of 40803254641 is 14645230804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30742362225 + 10060892416 = 175335^2 + 100304^2 .

It is a cyclic number.

It is not a de Polignac number, because 40803254641 - 2²¹ = 40801157489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40803254641.

It is not a weakly prime, because it can be changed into another prime (40803254621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20401627320 + 20401627321.

It is an arithmetic number, because the mean of its divisors is an integer number (20401627321).

Almost surely, 2^40803254641 is an apocalyptic number.

It is an amenable number.

40803254641 is a deficient number, since it is larger than the sum of its proper divisors (1).

40803254641 is an equidigital number, since it uses as much as digits as its factorization.

40803254641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 40803254641 in words is "forty billion, eight hundred three million, two hundred fifty-four thousand, six hundred forty-one".