77072750425 has 12 divisors (see below), whose sum is σ = 104258411856. Its totient is φ = 56052909200.

The previous prime is 77072750423. The next prime is 77072750437. The reversal of 77072750425 is 52405727077.

It is not a de Polignac number, because 77072750425 - 2¹ = 77072750423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77072750423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140131999 + ... + 140132548.

It is an arithmetic number, because the mean of its divisors is an integer number (8688200988).

Almost surely, 2^77072750425 is an apocalyptic number.

It is an amenable number.

77072750425 is a deficient number, since it is larger than the sum of its proper divisors (27185661431).

77072750425 is a wasteful number, since it uses less digits than its factorization.

77072750425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280264568 (or 280264563 counting only the distinct ones).

The product of its (nonzero) digits is 960400, while the sum is 46.

The spelling of 77072750425 in words is "seventy-seven billion, seventy-two million, seven hundred fifty thousand, four hundred twenty-five".