15420450611 has 2 divisors, whose sum is σ = 15420450612. Its totient is φ = 15420450610.

The previous prime is 15420450607. The next prime is 15420450631. The reversal of 15420450611 is 11605402451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15420450611 - 2² = 15420450607 is a prime.

It is not a weakly prime, because it can be changed into another prime (15420450601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7710225305 + 7710225306.

It is an arithmetic number, because the mean of its divisors is an integer number (7710225306).

Almost surely, 2^15420450611 is an apocalyptic number.

15420450611 is a deficient number, since it is larger than the sum of its proper divisors (1).

15420450611 is an equidigital number, since it uses as much as digits as its factorization.

15420450611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 15420450611 in words is "fifteen billion, four hundred twenty million, four hundred fifty thousand, six hundred eleven".