977068180157 has 2 divisors, whose sum is σ = 977068180158. Its totient is φ = 977068180156.

The previous prime is 977068180147. The next prime is 977068180213. The reversal of 977068180157 is 751081860779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 888379766521 + 88688413636 = 942539^2 + 297806^2 .

It is an emirp because it is prime and its reverse (751081860779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 977068180157 - 2⁴ = 977068180141 is a prime.

It is a super-3 number, since 3×977068180157³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 977068180096 and 977068180105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977068180147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488534090078 + 488534090079.

It is an arithmetic number, because the mean of its divisors is an integer number (488534090079).

Almost surely, 2^977068180157 is an apocalyptic number.

It is an amenable number.

977068180157 is a deficient number, since it is larger than the sum of its proper divisors (1).

977068180157 is an equidigital number, since it uses as much as digits as its factorization.

977068180157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5927040, while the sum is 59.

The spelling of 977068180157 in words is "nine hundred seventy-seven billion, sixty-eight million, one hundred eighty thousand, one hundred fifty-seven".