10506391498 has 36 divisors (see below), whose sum is σ = 16744474710. Its totient is φ = 4938268608.

The previous prime is 10506391481. The next prime is 10506391507. The reversal of 10506391498 is 89419360501.

It can be written as a sum of positive squares in 3 ways, for example, as 2282259529 + 8224131969 = 47773^2 + 90687^2 .

It is a super-2 number, since 2×10506391498² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33566590 + ... + 33566902.

Almost surely, 2^10506391498 is an apocalyptic number.

10506391498 is a deficient number, since it is larger than the sum of its proper divisors (6238083212).

10506391498 is an frugal number, since it uses more digits than its factorization.

10506391498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 10506391498 in words is "ten billion, five hundred six million, three hundred ninety-one thousand, four hundred ninety-eight".