147961769025 has 48 divisors (see below), whose sum is σ = 279653033600. Its totient is φ = 67621340160.

The previous prime is 147961769017. The next prime is 147961769027. The reversal of 147961769025 is 520967169741.

It is a happy number.

It is not a de Polignac number, because 147961769025 - 2³ = 147961769017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147961769027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2005491 + ... + 2077959.

Almost surely, 2^147961769025 is an apocalyptic number.

147961769025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

147961769025 is a deficient number, since it is larger than the sum of its proper divisors (131691264575).

147961769025 is a wasteful number, since it uses less digits than its factorization.

147961769025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76378 (or 76373 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 147961769025 in words is "one hundred forty-seven billion, nine hundred sixty-one million, seven hundred sixty-nine thousand, twenty-five".