54007779947 has 16 divisors (see below), whose sum is σ = 61018665984. Its totient is φ = 47376504000.

The previous prime is 54007779937. The next prime is 54007779983. The reversal of 54007779947 is 74997770045.

54007779947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 54007779947 - 2⁸ = 54007779691 is a prime.

It is a super-3 number, since 3×54007779947³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54007779907) 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, 698954 + ... + 772367.

It is an arithmetic number, because the mean of its divisors is an integer number (3813666624).

Almost surely, 2^54007779947 is an apocalyptic number.

54007779947 is a deficient number, since it is larger than the sum of its proper divisors (7010886037).

54007779947 is a wasteful number, since it uses less digits than its factorization.

54007779947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471450.

The product of its (nonzero) digits is 15558480, while the sum is 59.

The spelling of 54007779947 in words is "fifty-four billion, seven million, seven hundred seventy-nine thousand, nine hundred forty-seven".