147961296881 has 4 divisors (see below), whose sum is σ = 148712369652. Its totient is φ = 147210224112.

The previous prime is 147961296827. The next prime is 147961296929. The reversal of 147961296881 is 188692169741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118184688400 + 29776608481 = 343780^2 + 172559^2 .

It is a cyclic number.

It is not a de Polignac number, because 147961296881 - 2¹⁸ = 147961034737 is a prime.

It is a super-2 number, since 2×147961296881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147961296811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375536090 + ... + 375536483.

It is an arithmetic number, because the mean of its divisors is an integer number (37178092413).

Almost surely, 2^147961296881 is an apocalyptic number.

It is an amenable number.

147961296881 is a deficient number, since it is larger than the sum of its proper divisors (751072771).

147961296881 is an equidigital number, since it uses as much as digits as its factorization.

147961296881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751072770.

The product of its digits is 10450944, while the sum is 62.

The spelling of 147961296881 in words is "one hundred forty-seven billion, nine hundred sixty-one million, two hundred ninety-six thousand, eight hundred eighty-one".