126304643454451 has 32 divisors (see below), whose sum is σ = 157718079267840. Its totient is φ = 98264658729600.

The previous prime is 126304643454389. The next prime is 126304643454481. The reversal of 126304643454451 is 154454346403621.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-126304643454451 is a prime.

It is a super-2 number, since 2×126304643454451² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126304643454481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290257621 + ... + 290692441.

It is an arithmetic number, because the mean of its divisors is an integer number (4928689977120).

Almost surely, 2^{126304643454451} is an apocalyptic number.

126304643454451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

126304643454451 is a deficient number, since it is larger than the sum of its proper divisors (31413435813389).

126304643454451 is a wasteful number, since it uses less digits than its factorization.

126304643454451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440755.

The product of its (nonzero) digits is 16588800, while the sum is 52.

The spelling of 126304643454451 in words is "one hundred twenty-six trillion, three hundred four billion, six hundred forty-three million, four hundred fifty-four thousand, four hundred fifty-one".