125979565102 has 4 divisors (see below), whose sum is σ = 188969347656. Its totient is φ = 62989782550.

The previous prime is 125979565099. The next prime is 125979565121. The reversal of 125979565102 is 201565979521.

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

It is a self number, because there is not a number n which added to its sum of digits gives 125979565102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31494891274 + ... + 31494891277.

It is an arithmetic number, because the mean of its divisors is an integer number (47242336914).

Almost surely, 2^125979565102 is an apocalyptic number.

125979565102 is a deficient number, since it is larger than the sum of its proper divisors (62989782554).

125979565102 is an equidigital number, since it uses as much as digits as its factorization.

125979565102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62989782553.

The product of its (nonzero) digits is 1701000, while the sum is 52.

The spelling of 125979565102 in words is "one hundred twenty-five billion, nine hundred seventy-nine million, five hundred sixty-five thousand, one hundred two".