54947666674945 has 16 divisors (see below), whose sum is σ = 72037741324608. Its totient is φ = 39902911397440.

The previous prime is 54947666674907. The next prime is 54947666674973.

54947666674945 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-54947666674945 is a prime.

It is a super-2 number, since 2×54947666674945² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 737812459 + ... + 737886928.

It is an arithmetic number, because the mean of its divisors is an integer number (4502358832788).

Almost surely, 2^{54947666674945} is an apocalyptic number.

54947666674945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54947666674945 is a deficient number, since it is larger than the sum of its proper divisors (17090074649663).

54947666674945 is a wasteful number, since it uses less digits than its factorization.

54947666674945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475700080.

The product of its digits is 32920473600, while the sum is 82.

It can be divided in two parts, 5494766 and 6674945, that added together give a triangular number (12169711 = T₄₉₃₃).

The spelling of 54947666674945 in words is "fifty-four trillion, nine hundred forty-seven billion, six hundred sixty-six million, six hundred seventy-four thousand, nine hundred forty-five".