10491745438 has 8 divisors (see below), whose sum is σ = 15738922440. Its totient is φ = 5245437960.

The previous prime is 10491745421. The next prime is 10491745457. The reversal of 10491745438 is 83454719401.

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

It is a super-2 number, since 2×10491745438² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186328 + ... + 236011.

It is an arithmetic number, because the mean of its divisors is an integer number (1967365305).

Almost surely, 2^10491745438 is an apocalyptic number.

10491745438 is a deficient number, since it is larger than the sum of its proper divisors (5247177002).

10491745438 is a wasteful number, since it uses less digits than its factorization.

10491745438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434762.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 10491745438 in words is "ten billion, four hundred ninety-one million, seven hundred forty-five thousand, four hundred thirty-eight".