40769073621 has 6 divisors (see below), whose sum is σ = 58888661910. Its totient is φ = 27179382408.

The previous prime is 40769073619. The next prime is 40769073629. The reversal of 40769073621 is 12637096704.

It can be written as a sum of positive squares in only one way, i.e., 27867294225 + 12901779396 = 166935^2 + 113586^2 .

It is not a de Polignac number, because 40769073621 - 2¹ = 40769073619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40769073629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2264948526 + ... + 2264948543.

It is an arithmetic number, because the mean of its divisors is an integer number (9814776985).

Almost surely, 2^40769073621 is an apocalyptic number.

It is an amenable number.

40769073621 is a deficient number, since it is larger than the sum of its proper divisors (18119588289).

40769073621 is a wasteful number, since it uses less digits than its factorization.

40769073621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4529897075 (or 4529897072 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 40769073621 in words is "forty billion, seven hundred sixty-nine million, seventy-three thousand, six hundred twenty-one".