30125806837 has 32 divisors (see below), whose sum is σ = 35490850560. Its totient is φ = 25035816960.

The previous prime is 30125806819. The next prime is 30125806861. The reversal of 30125806837 is 73860852103.

It is not a de Polignac number, because 30125806837 - 2¹¹ = 30125804789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30125806793 and 30125806802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30125806807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29856589 + ... + 29857597.

It is an arithmetic number, because the mean of its divisors is an integer number (1109089080).

Almost surely, 2^30125806837 is an apocalyptic number.

It is an amenable number.

30125806837 is a deficient number, since it is larger than the sum of its proper divisors (5365043723).

30125806837 is a wasteful number, since it uses less digits than its factorization.

30125806837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 30125806837 in words is "thirty billion, one hundred twenty-five million, eight hundred six thousand, eight hundred thirty-seven".