25347446242 has 16 divisors (see below), whose sum is σ = 40953036960. Its totient is φ = 11727459072.

The previous prime is 25347446219. The next prime is 25347446251. The reversal of 25347446242 is 24264474352.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7754623 + ... + 7757890.

It is an arithmetic number, because the mean of its divisors is an integer number (2559564810).

Almost surely, 2^25347446242 is an apocalyptic number.

25347446242 is a deficient number, since it is larger than the sum of its proper divisors (15605590718).

25347446242 is a wasteful number, since it uses less digits than its factorization.

25347446242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15512577.

The product of its digits is 1290240, while the sum is 43.

The spelling of 25347446242 in words is "twenty-five billion, three hundred forty-seven million, four hundred forty-six thousand, two hundred forty-two".