420040094651 has 4 divisors (see below), whose sum is σ = 426925997904. Its totient is φ = 413154191400.

The previous prime is 420040094647. The next prime is 420040094681. The reversal of 420040094651 is 156490040024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420040094651 - 2² = 420040094647 is a prime.

It is a super-2 number, since 2×420040094651² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420040094681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3442951535 + ... + 3442951656.

It is an arithmetic number, because the mean of its divisors is an integer number (106731499476).

Almost surely, 2^420040094651 is an apocalyptic number.

420040094651 is a deficient number, since it is larger than the sum of its proper divisors (6885903253).

420040094651 is an equidigital number, since it uses as much as digits as its factorization.

420040094651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6885903252.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 420040094651 in words is "four hundred twenty billion, forty million, ninety-four thousand, six hundred fifty-one".