151858425261 has 4 divisors (see below), whose sum is σ = 202477900352. Its totient is φ = 101238950172.

The previous prime is 151858425259. The next prime is 151858425307. The reversal of 151858425261 is 162524858151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 151858425261 - 2¹ = 151858425259 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 151858425261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151858425211) 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, 25309737541 + ... + 25309737546.

It is an arithmetic number, because the mean of its divisors is an integer number (50619475088).

Almost surely, 2^151858425261 is an apocalyptic number.

It is an amenable number.

151858425261 is a deficient number, since it is larger than the sum of its proper divisors (50619475091).

151858425261 is an equidigital number, since it uses as much as digits as its factorization.

151858425261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50619475090.

The product of its digits is 768000, while the sum is 48.

The spelling of 151858425261 in words is "one hundred fifty-one billion, eight hundred fifty-eight million, four hundred twenty-five thousand, two hundred sixty-one".