1900388051794 has 16 divisors (see below), whose sum is σ = 2851666479000. Its totient is φ = 949832629504.

The previous prime is 1900388051767. The next prime is 1900388051797. The reversal of 1900388051794 is 4971508830091.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1456281765225 + 444106286569 = 1206765^2 + 666413^2 .

It is a super-2 number, since 2×1900388051794² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1900388051797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100705392 + ... + 100724260.

Almost surely, 2^{1900388051794} is an apocalyptic number.

1900388051794 is a deficient number, since it is larger than the sum of its proper divisors (951278427206).

1900388051794 is a wasteful number, since it uses less digits than its factorization.

1900388051794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35357.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 1900388051794 in words is "one trillion, nine hundred billion, three hundred eighty-eight million, fifty-one thousand, seven hundred ninety-four".