742202772481 has 4 divisors (see below), whose sum is σ = 742206173764. Its totient is φ = 742199371200.

The previous prime is 742202772473. The next prime is 742202772617. The reversal of 742202772481 is 184277202247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184277202247 = 145547 ⋅1266101.

It can be written as a sum of positive squares in 2 ways, for example, as 638586381456 + 103616391025 = 799116^2 + 321895^2 .

It is a cyclic number.

It is not a de Polignac number, because 742202772481 - 2³ = 742202772473 is a prime.

It is a super-2 number, since 2×742202772481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742202772431) 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 3 ways as a sum of consecutive naturals, for example, 1349100 + ... + 1817821.

It is an arithmetic number, because the mean of its divisors is an integer number (185551543441).

Almost surely, 2^742202772481 is an apocalyptic number.

It is an amenable number.

742202772481 is a deficient number, since it is larger than the sum of its proper divisors (3401283).

742202772481 is a wasteful number, since it uses less digits than its factorization.

742202772481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401282.

The product of its (nonzero) digits is 702464, while the sum is 46.

The spelling of 742202772481 in words is "seven hundred forty-two billion, two hundred two million, seven hundred seventy-two thousand, four hundred eighty-one".