126491678394780 has 96 divisors (see below), whose sum is σ = 372852617276160. Its totient is φ = 31952789107200.

The previous prime is 126491678394733. The next prime is 126491678394793. The reversal of 126491678394780 is 87493876194621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6933352 + ... + 17350928.

It is an arithmetic number, because the mean of its divisors is an integer number (3883881429960).

Almost surely, 2^{126491678394780} is an apocalyptic number.

126491678394780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126491678394780 is an abundant number, since it is smaller than the sum of its proper divisors (246360938881380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126491678394780 is a wasteful number, since it uses less digits than its factorization.

126491678394780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10428259 (or 10428257 counting only the distinct ones).

The product of its (nonzero) digits is 877879296, while the sum is 75.

The spelling of 126491678394780 in words is "one hundred twenty-six trillion, four hundred ninety-one billion, six hundred seventy-eight million, three hundred ninety-four thousand, seven hundred eighty".