190452738861 has 144 divisors (see below), whose sum is σ = 363903321600. Its totient is φ = 98425847520.

The previous prime is 190452738841. The next prime is 190452738881. The reversal of 190452738861 is 168837254091.

190452738861 is a `hidden beast` number, since 1 + 9 + 0 + 4 + 527 + 38 + 86 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (190452738841) and next prime (190452738881).

It is not a de Polignac number, because 190452738861 - 2¹¹ = 190452736813 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 190452738798 and 190452738807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190452738841) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 26060770 + ... + 26068076.

It is an arithmetic number, because the mean of its divisors is an integer number (2527106400).

It is a 1-persistent number, because it is pandigital, but 2⋅190452738861 = 380905477722 is not.

Almost surely, 2^190452738861 is an apocalyptic number.

190452738861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

190452738861 is a deficient number, since it is larger than the sum of its proper divisors (173450582739).

190452738861 is a wasteful number, since it uses less digits than its factorization.

190452738861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7546 (or 7527 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 190452738861 in words is "one hundred ninety billion, four hundred fifty-two million, seven hundred thirty-eight thousand, eight hundred sixty-one".