11542146451 has 4 divisors (see below), whose sum is σ = 12591432504. Its totient is φ = 10492860400.

The previous prime is 11542146449. The next prime is 11542146503. The reversal of 11542146451 is 15464124511.

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

It is not a de Polignac number, because 11542146451 - 2¹ = 11542146449 is a prime.

It is a super-2 number, since 2×11542146451² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11542146431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524643010 + ... + 524643031.

It is an arithmetic number, because the mean of its divisors is an integer number (3147858126).

Almost surely, 2^11542146451 is an apocalyptic number.

11542146451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11542146451 is a deficient number, since it is larger than the sum of its proper divisors (1049286053).

11542146451 is a wasteful number, since it uses less digits than its factorization.

11542146451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049286052.

The product of its digits is 19200, while the sum is 34.

The spelling of 11542146451 in words is "eleven billion, five hundred forty-two million, one hundred forty-six thousand, four hundred fifty-one".