9742900749 has 8 divisors (see below), whose sum is σ = 13210713120. Its totient is φ = 6385177776.

The previous prime is 9742900747. The next prime is 9742900781. The reversal of 9742900749 is 9470092479.

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

It is not a de Polignac number, because 9742900749 - 2¹ = 9742900747 is a prime.

It is a super-2 number, since 2×9742900749² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9742900747) 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, 27522142 + ... + 27522495.

It is an arithmetic number, because the mean of its divisors is an integer number (1651339140).

Almost surely, 2^9742900749 is an apocalyptic number.

It is an amenable number.

9742900749 is a deficient number, since it is larger than the sum of its proper divisors (3467812371).

9742900749 is a wasteful number, since it uses less digits than its factorization.

9742900749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55044699.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The square root of 9742900749 is about 98706.1332896796. The cubic root of 9742900749 is about 2135.8107076622.

The spelling of 9742900749 in words is "nine billion, seven hundred forty-two million, nine hundred thousand, seven hundred forty-nine".