1906857296745 has 32 divisors (see below), whose sum is σ = 3212916295680. Its totient is φ = 963054590400.

The previous prime is 1906857296737. The next prime is 1906857296761. The reversal of 1906857296745 is 5476927586091.

It is not a de Polignac number, because 1906857296745 - 2³ = 1906857296737 is a prime.

It is a super-2 number, since 2×1906857296745² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1906857296745.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 752919 + ... + 2092988.

It is an arithmetic number, because the mean of its divisors is an integer number (100403634240).

Almost surely, 2^{1906857296745} is an apocalyptic number.

1906857296745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1906857296745 is a deficient number, since it is larger than the sum of its proper divisors (1306058998935).

1906857296745 is a wasteful number, since it uses less digits than its factorization.

1906857296745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848285.

The product of its (nonzero) digits is 228614400, while the sum is 69.

The spelling of 1906857296745 in words is "one trillion, nine hundred six billion, eight hundred fifty-seven million, two hundred ninety-six thousand, seven hundred forty-five".