620477467854 has 16 divisors (see below), whose sum is σ = 1240964798592. Its totient is φ = 206824178808.

The previous prime is 620477467849. The next prime is 620477467879. The reversal of 620477467854 is 458764774026.

It is a super-2 number, since 2×620477467854² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597087 + ... + 1263909.

It is an arithmetic number, because the mean of its divisors is an integer number (77560299912).

Almost surely, 2^620477467854 is an apocalyptic number.

620477467854 is an abundant number, since it is smaller than the sum of its proper divisors (620487330738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620477467854 is a wasteful number, since it uses less digits than its factorization.

620477467854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821911.

The product of its (nonzero) digits is 63221760, while the sum is 60.

The spelling of 620477467854 in words is "six hundred twenty billion, four hundred seventy-seven million, four hundred sixty-seven thousand, eight hundred fifty-four".