25814940930 has 48 divisors (see below), whose sum is σ = 69283977984. Its totient is φ = 6661919520.

The previous prime is 25814940911. The next prime is 25814940953. The reversal of 25814940930 is 3904941852.

It is a super-2 number, since 2×25814940930² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4623544 + ... + 4629123.

It is an arithmetic number, because the mean of its divisors is an integer number (1443416208).

Almost surely, 2^25814940930 is an apocalyptic number.

25814940930 is an abundant number, since it is smaller than the sum of its proper divisors (43469037054).

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

25814940930 is a wasteful number, since it uses less digits than its factorization.

25814940930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9252711 (or 9252708 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 25814940930 in words is "twenty-five billion, eight hundred fourteen million, nine hundred forty thousand, nine hundred thirty".