25136219094 has 32 divisors (see below), whose sum is σ = 57798268416. Its totient is φ = 7138770240.

The previous prime is 25136219051. The next prime is 25136219107. The reversal of 25136219094 is 49091263152.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1784847 + ... + 1798874.

It is an arithmetic number, because the mean of its divisors is an integer number (1806195888).

Almost surely, 2^25136219094 is an apocalyptic number.

25136219094 is an abundant number, since it is smaller than the sum of its proper divisors (32662049322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25136219094 is a wasteful number, since it uses less digits than its factorization.

25136219094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583900.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 25136219094 in words is "twenty-five billion, one hundred thirty-six million, two hundred nineteen thousand, ninety-four".