977142503733397 has 2 divisors, whose sum is σ = 977142503733398. Its totient is φ = 977142503733396.

The previous prime is 977142503733269. The next prime is 977142503733421. The reversal of 977142503733397 is 793337305241779.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 563236255294801 + 413906248438596 = 23732599^2 + 20344686^2 .

It is an emirp because it is prime and its reverse (793337305241779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 977142503733397 - 2⁷ = 977142503733269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977142533733397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488571251866698 + 488571251866699.

It is an arithmetic number, because the mean of its divisors is an integer number (488571251866699).

Almost surely, 2^{977142503733397} is an apocalyptic number.

It is an amenable number.

977142503733397 is a deficient number, since it is larger than the sum of its proper divisors (1).

977142503733397 is an equidigital number, since it uses as much as digits as its factorization.

977142503733397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630118440, while the sum is 70.

The spelling of 977142503733397 in words is "nine hundred seventy-seven trillion, one hundred forty-two billion, five hundred three million, seven hundred thirty-three thousand, three hundred ninety-seven".