742678920751 has 8 divisors (see below), whose sum is σ = 750618088704. Its totient is φ = 734758239000.

The previous prime is 742678920749. The next prime is 742678920773. The reversal of 742678920751 is 157029876247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 742678920751 - 2¹ = 742678920749 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 (742678920721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4540765 + ... + 4701478.

It is an arithmetic number, because the mean of its divisors is an integer number (93827261088).

Almost surely, 2^742678920751 is an apocalyptic number.

742678920751 is a deficient number, since it is larger than the sum of its proper divisors (7939167953).

742678920751 is a wasteful number, since it uses less digits than its factorization.

742678920751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9243101.

The product of its (nonzero) digits is 11854080, while the sum is 58.

The spelling of 742678920751 in words is "seven hundred forty-two billion, six hundred seventy-eight million, nine hundred twenty thousand, seven hundred fifty-one".