975377773547 has 2 divisors, whose sum is σ = 975377773548. Its totient is φ = 975377773546.

The previous prime is 975377773511. The next prime is 975377773549. The reversal of 975377773547 is 745377773579.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 975377773547 - 2⁸ = 975377773291 is a prime.

It is a super-2 number, since 2×975377773547² (a number of 25 digits) contains 22 as substring.

Together with 975377773549, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (975377773549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487688886773 + 487688886774.

It is an arithmetic number, because the mean of its divisors is an integer number (487688886774).

Almost surely, 2^975377773547 is an apocalyptic number.

975377773547 is a deficient number, since it is larger than the sum of its proper divisors (1).

975377773547 is an equidigital number, since it uses as much as digits as its factorization.

975377773547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952956900, while the sum is 71.

The spelling of 975377773547 in words is "nine hundred seventy-five billion, three hundred seventy-seven million, seven hundred seventy-three thousand, five hundred forty-seven".