140481953977 has 2 divisors, whose sum is σ = 140481953978. Its totient is φ = 140481953976.

The previous prime is 140481953971. The next prime is 140481953987. The reversal of 140481953977 is 779359184041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89705641081 + 50776312896 = 299509^2 + 225336^2 .

It is a cyclic number.

It is not a de Polignac number, because 140481953977 - 2³⁵ = 106122215609 is a prime.

It is a super-2 number, since 2×140481953977² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140481953971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70240976988 + 70240976989.

It is an arithmetic number, because the mean of its divisors is an integer number (70240976989).

Almost surely, 2^140481953977 is an apocalyptic number.

It is an amenable number.

140481953977 is a deficient number, since it is larger than the sum of its proper divisors (1).

140481953977 is an equidigital number, since it uses as much as digits as its factorization.

140481953977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 140481953977 in words is "one hundred forty billion, four hundred eighty-one million, nine hundred fifty-three thousand, nine hundred seventy-seven".