11612507477 has 2 divisors, whose sum is σ = 11612507478. Its totient is φ = 11612507476.

The previous prime is 11612507443. The next prime is 11612507479. The reversal of 11612507477 is 77470521611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10533122161 + 1079385316 = 102631^2 + 32854^2 .

It is a cyclic number.

It is not a de Polignac number, because 11612507477 - 2²² = 11608313173 is a prime.

Together with 11612507479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11612507479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5806253738 + 5806253739.

It is an arithmetic number, because the mean of its divisors is an integer number (5806253739).

Almost surely, 2^11612507477 is an apocalyptic number.

It is an amenable number.

11612507477 is a deficient number, since it is larger than the sum of its proper divisors (1).

11612507477 is an equidigital number, since it uses as much as digits as its factorization.

11612507477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 41.

The spelling of 11612507477 in words is "eleven billion, six hundred twelve million, five hundred seven thousand, four hundred seventy-seven".