2545748737478 has 8 divisors (see below), whose sum is σ = 4043247994872. Its totient is φ = 1197999405856.

The previous prime is 2545748737463. The next prime is 2545748737487. The reversal of 2545748737478 is 8747378475452.

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

It is a super-4 number, since 4×2545748737478⁴ (a number of 51 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 37437481400 + ... + 37437481467.

It is an arithmetic number, because the mean of its divisors is an integer number (505405999359).

Almost surely, 2^{2545748737478} is an apocalyptic number.

2545748737478 is a deficient number, since it is larger than the sum of its proper divisors (1497499257394).

2545748737478 is a wasteful number, since it uses less digits than its factorization.

2545748737478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74874962886.

The product of its digits is 1475174400, while the sum is 71.

The spelling of 2545748737478 in words is "two trillion, five hundred forty-five billion, seven hundred forty-eight million, seven hundred thirty-seven thousand, four hundred seventy-eight".