254157406723 has 16 divisors (see below), whose sum is σ = 292806138240. Its totient is φ = 218178489600.

The previous prime is 254157406687. The next prime is 254157406733. The reversal of 254157406723 is 327604751452.

It is a de Polignac number, because none of the positive numbers 2^k-254157406723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254157406733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1916398 + ... + 2044723.

It is an arithmetic number, because the mean of its divisors is an integer number (18300383640).

Almost surely, 2^254157406723 is an apocalyptic number.

254157406723 is a deficient number, since it is larger than the sum of its proper divisors (38648731517).

254157406723 is a wasteful number, since it uses less digits than its factorization.

254157406723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961458.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 254157406723 in words is "two hundred fifty-four billion, one hundred fifty-seven million, four hundred six thousand, seven hundred twenty-three".