920890692541 has 2 divisors, whose sum is σ = 920890692542. Its totient is φ = 920890692540.

The previous prime is 920890692521. The next prime is 920890692581. The reversal of 920890692541 is 145296098029.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 920822564025 + 68128516 = 959595^2 + 8254^2 .

It is a cyclic number.

It is not a de Polignac number, because 920890692541 - 2⁵ = 920890692509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920890692521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460445346270 + 460445346271.

It is an arithmetic number, because the mean of its divisors is an integer number (460445346271).

Almost surely, 2^920890692541 is an apocalyptic number.

It is an amenable number.

920890692541 is a deficient number, since it is larger than the sum of its proper divisors (1).

920890692541 is an equidigital number, since it uses as much as digits as its factorization.

920890692541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 920890692541 in words is "nine hundred twenty billion, eight hundred ninety million, six hundred ninety-two thousand, five hundred forty-one".