126498108681 has 48 divisors (see below), whose sum is σ = 215812280320. Its totient is φ = 69870509280.

The previous prime is 126498108677. The next prime is 126498108697. The reversal of 126498108681 is 186801894621.

It is a happy number.

It is not a de Polignac number, because 126498108681 - 2² = 126498108677 is a prime.

It is a super-2 number, since 2×126498108681² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126498108481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1639926 + ... + 1715328.

Almost surely, 2^126498108681 is an apocalyptic number.

It is an amenable number.

126498108681 is a deficient number, since it is larger than the sum of its proper divisors (89314171639).

126498108681 is a wasteful number, since it uses less digits than its factorization.

126498108681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76306 (or 76303 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The spelling of 126498108681 in words is "one hundred twenty-six billion, four hundred ninety-eight million, one hundred eight thousand, six hundred eighty-one".