740440766773 has 4 divisors (see below), whose sum is σ = 740463475468. Its totient is φ = 740418058080.

The previous prime is 740440766771. The next prime is 740440766783. The reversal of 740440766773 is 377667044047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 377667044047 = 167173 ⋅2259139.

It can be written as a sum of positive squares in 2 ways, for example, as 330811326244 + 409629440529 = 575162^2 + 640023^2 .

It is a cyclic number.

It is not a de Polignac number, because 740440766773 - 2¹ = 740440766771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740440766771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11305368 + ... + 11370673.

It is an arithmetic number, because the mean of its divisors is an integer number (185115868867).

Almost surely, 2^740440766773 is an apocalyptic number.

It is an amenable number.

740440766773 is a deficient number, since it is larger than the sum of its proper divisors (22708695).

740440766773 is a wasteful number, since it uses less digits than its factorization.

740440766773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22708694.

The product of its (nonzero) digits is 16595712, while the sum is 55.

The spelling of 740440766773 in words is "seven hundred forty billion, four hundred forty million, seven hundred sixty-six thousand, seven hundred seventy-three".