9904743551 has 8 divisors (see below), whose sum is σ = 10152366000. Its totient is φ = 9657408960.

The previous prime is 9904743493. The next prime is 9904743553. The reversal of 9904743551 is 1553474099.

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

It is not a de Polignac number, because 9904743551 - 2⁶ = 9904743487 is a prime.

It is a super-2 number, since 2×9904743551² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9904743496 and 9904743505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9904743553) 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, 1436 + ... + 140753.

It is an arithmetic number, because the mean of its divisors is an integer number (1269045750).

Almost surely, 2^9904743551 is an apocalyptic number.

9904743551 is a deficient number, since it is larger than the sum of its proper divisors (247622449).

9904743551 is a wasteful number, since it uses less digits than its factorization.

9904743551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143929.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 9904743551 is about 99522.5780966309. The cubic root of 9904743551 is about 2147.5720600871.

The spelling of 9904743551 in words is "nine billion, nine hundred four million, seven hundred forty-three thousand, five hundred fifty-one".