140077127808 has 72 divisors (see below), whose sum is σ = 403123084455. Its totient is φ = 46688141568.

The previous prime is 140077127807. The next prime is 140077127849. The reversal of 140077127808 is 808721770041.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 70038563904 + 70038563904 = 264648^2 + 264648^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=264648.

It is not an unprimeable number, because it can be changed into a prime (140077127807) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12697591 + ... + 12708617.

Almost surely, 2^140077127808 is an apocalyptic number.

140077127808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140077127808 is an abundant number, since it is smaller than the sum of its proper divisors (263045956647).

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

140077127808 is an frugal number, since it uses more digits than its factorization.

140077127808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22074 (or 11032 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 45.

Adding to 140077127808 its reverse (808721770041), we get a palindrome (948798897849).

The spelling of 140077127808 in words is "one hundred forty billion, seventy-seven million, one hundred twenty-seven thousand, eight hundred eight".