125442774328 has 8 divisors (see below), whose sum is σ = 235205201880. Its totient is φ = 62721387160.

The previous prime is 125442774323. The next prime is 125442774329. The reversal of 125442774328 is 823477244521.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×125442774328² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125442774323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7840173388 + ... + 7840173403.

It is an arithmetic number, because the mean of its divisors is an integer number (29400650235).

Almost surely, 2^125442774328 is an apocalyptic number.

It is an amenable number.

125442774328 is a deficient number, since it is larger than the sum of its proper divisors (109762427552).

125442774328 is a wasteful number, since it uses less digits than its factorization.

125442774328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15680346797 (or 15680346793 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 49.

It can be divided in two parts, 12544 and 2774328, that added together give a palindrome (2786872).

The spelling of 125442774328 in words is "one hundred twenty-five billion, four hundred forty-two million, seven hundred seventy-four thousand, three hundred twenty-eight".