742170612243 has 16 divisors (see below), whose sum is σ = 997869035520. Its totient is φ = 490634162496.

The previous prime is 742170612223. The next prime is 742170612259. The reversal of 742170612243 is 342216071247.

It is not a de Polignac number, because 742170612243 - 2¹⁶ = 742170546707 is a prime.

It is a super-2 number, since 2×742170612243² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (742170612223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604755 + ... + 1360172.

It is an arithmetic number, because the mean of its divisors is an integer number (62366814720).

Almost surely, 2^742170612243 is an apocalyptic number.

742170612243 is a deficient number, since it is larger than the sum of its proper divisors (255698423277).

742170612243 is a wasteful number, since it uses less digits than its factorization.

742170612243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965986.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 742170612243 in words is "seven hundred forty-two billion, one hundred seventy million, six hundred twelve thousand, two hundred forty-three".