977678745707 has 2 divisors, whose sum is σ = 977678745708. Its totient is φ = 977678745706.

The previous prime is 977678745613. The next prime is 977678745733. The reversal of 977678745707 is 707547876779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 977678745707 - 2¹⁴ = 977678729323 is a prime.

It is not a weakly prime, because it can be changed into another prime (977678745607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488839372853 + 488839372854.

It is an arithmetic number, because the mean of its divisors is an integer number (488839372854).

Almost surely, 2^977678745707 is an apocalyptic number.

977678745707 is a deficient number, since it is larger than the sum of its proper divisors (1).

977678745707 is an equidigital number, since it uses as much as digits as its factorization.

977678745707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016487360, while the sum is 74.

The spelling of 977678745707 in words is "nine hundred seventy-seven billion, six hundred seventy-eight million, seven hundred forty-five thousand, seven hundred seven".