10491253742 has 4 divisors (see below), whose sum is σ = 15736880616. Its totient is φ = 5245626870.

The previous prime is 10491253739. The next prime is 10491253757. The reversal of 10491253742 is 24735219401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24735219401 = 2063 ⋅11989927.

It is a super-2 number, since 2×10491253742² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10491253696 and 10491253705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2622813434 + ... + 2622813437.

It is an arithmetic number, because the mean of its divisors is an integer number (3934220154).

Almost surely, 2^10491253742 is an apocalyptic number.

10491253742 is a deficient number, since it is larger than the sum of its proper divisors (5245626874).

10491253742 is an equidigital number, since it uses as much as digits as its factorization.

10491253742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5245626873.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 10491253742 in words is "ten billion, four hundred ninety-one million, two hundred fifty-three thousand, seven hundred forty-two".