54640321146487 has 8 divisors (see below), whose sum is σ = 54683033690736. Its totient is φ = 54597609505152.

The previous prime is 54640321146457. The next prime is 54640321146533. The reversal of 54640321146487 is 78464112304645.

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 54640321146487 - 2²³ = 54640312757879 is a prime.

It is a super-2 number, since 2×54640321146487² (a number of 28 digits) contains 22 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 (54640321146427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171962253 + ... + 172279705.

It is an arithmetic number, because the mean of its divisors is an integer number (6835379211342).

Almost surely, 2^{54640321146487} is an apocalyptic number.

54640321146487 is a deficient number, since it is larger than the sum of its proper divisors (42712544249).

54640321146487 is a wasteful number, since it uses less digits than its factorization.

54640321146487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451457.

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 54640321146487 in words is "fifty-four trillion, six hundred forty billion, three hundred twenty-one million, one hundred forty-six thousand, four hundred eighty-seven".