54391400279 has 8 divisors (see below), whose sum is σ = 55746660480. Its totient is φ = 53037504000.

The previous prime is 54391400267. The next prime is 54391400291. The reversal of 54391400279 is 97200419345.

It is an interprime number because it is at equal distance from previous prime (54391400267) and next prime (54391400291).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54391400279 - 2²⁸ = 54122964823 is a prime.

It is a super-3 number, since 3×54391400279³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54391400779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259994 + ... + 419975.

It is an arithmetic number, because the mean of its divisors is an integer number (6968332560).

Almost surely, 2^54391400279 is an apocalyptic number.

54391400279 is a deficient number, since it is larger than the sum of its proper divisors (1355260201).

54391400279 is a wasteful number, since it uses less digits than its factorization.

54391400279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681961.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 54391400279 in words is "fifty-four billion, three hundred ninety-one million, four hundred thousand, two hundred seventy-nine".