254654510978 has 16 divisors (see below), whose sum is σ = 436585277184. Its totient is φ = 109128975840.

The previous prime is 254654510917. The next prime is 254654510983. The reversal of 254654510978 is 879015456452.

It is a super-2 number, since 2×254654510978² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

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, 538538 + ... + 894053.

It is an arithmetic number, because the mean of its divisors is an integer number (27286579824).

Almost surely, 2^254654510978 is an apocalyptic number.

254654510978 is a deficient number, since it is larger than the sum of its proper divisors (181930766206).

254654510978 is a wasteful number, since it uses less digits than its factorization.

254654510978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445297.

The product of its (nonzero) digits is 12096000, while the sum is 56.

The spelling of 254654510978 in words is "two hundred fifty-four billion, six hundred fifty-four million, five hundred ten thousand, nine hundred seventy-eight".