2249208387778 has 16 divisors (see below), whose sum is σ = 3716963640000. Its totient is φ = 1012244998000.

The previous prime is 2249208387763. The next prime is 2249208387823. The reversal of 2249208387778 is 8777838029422.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506120278 + ... + 506124721.

It is an arithmetic number, because the mean of its divisors is an integer number (232310227500).

Almost surely, 2^{2249208387778} is an apocalyptic number.

2249208387778 is a deficient number, since it is larger than the sum of its proper divisors (1467755252222).

2249208387778 is a wasteful number, since it uses less digits than its factorization.

2249208387778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012245113.

The product of its (nonzero) digits is 151732224, while the sum is 67.

The spelling of 2249208387778 in words is "two trillion, two hundred forty-nine billion, two hundred eight million, three hundred eighty-seven thousand, seven hundred seventy-eight".