10538154278 has 4 divisors (see below), whose sum is σ = 15807231420. Its totient is φ = 5269077138.

The previous prime is 10538154271. The next prime is 10538154331. The reversal of 10538154278 is 87245183501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×10538154278² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10538154271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2634538568 + ... + 2634538571.

It is an arithmetic number, because the mean of its divisors is an integer number (3951807855).

Almost surely, 2^10538154278 is an apocalyptic number.

10538154278 is a deficient number, since it is larger than the sum of its proper divisors (5269077142).

10538154278 is an equidigital number, since it uses as much as digits as its factorization.

10538154278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5269077141.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 10538154278 in words is "ten billion, five hundred thirty-eight million, one hundred fifty-four thousand, two hundred seventy-eight".