126877275019 has 4 divisors (see below), whose sum is σ = 138411572760. Its totient is φ = 115342977280.

The previous prime is 126877274971. The next prime is 126877275097. The reversal of 126877275019 is 910572778621.

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

It is a cyclic number.

It is not a de Polignac number, because 126877275019 - 2²³ = 126868886411 is a prime.

It is a super-2 number, since 2×126877275019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126877275319) 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, 5767148854 + ... + 5767148875.

It is an arithmetic number, because the mean of its divisors is an integer number (34602893190).

Almost surely, 2^126877275019 is an apocalyptic number.

126877275019 is a deficient number, since it is larger than the sum of its proper divisors (11534297741).

126877275019 is a wasteful number, since it uses less digits than its factorization.

126877275019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11534297740.

The product of its (nonzero) digits is 2963520, while the sum is 55.

The spelling of 126877275019 in words is "one hundred twenty-six billion, eight hundred seventy-seven million, two hundred seventy-five thousand, nineteen".